UFP Industries (UFPI) 10-Q3 Nov 212021 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information	9 Months Ended
Document and Entity Information	Sep. 25, 2021shares
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 25, 2021
Entity File Number	0-22684
Entity Registrant Name	UFP INDUSTRIES, INC.
Entity Incorporation, State or Country Code	MI
Entity Tax Identification Number	38-1465835
Entity Address, Address Line One	2801 East Beltline NE
Entity Address, City or Town	Grand Rapids
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	49525
City Area Code	616
Local Phone Number	364-6161
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	UFPI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)	61,887,770
Current Fiscal Year End Date	--12-25
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000912767
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 25, 2021	Dec. 26, 2020	Sep. 26, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 138,637	$ 436,507	$ 346,154
Restricted cash	17,592	101	724
Investments	33,723	24,308	20,530
Accounts receivable, net	783,959	470,504	583,079
Inventories:
Raw materials	368,185	316,481	286,418
Finished goods	532,480	250,813	242,316
Total inventories	900,665	567,294	528,734
Refundable income taxes	14,134	5,836
Other current assets	34,040	33,812	32,888
TOTAL CURRENT ASSETS	1,922,750	1,538,362	1,512,109
DEFERRED INCOME TAXES	2,330	2,413	2,070
RESTRICTED INVESTMENTS	18,925	17,565	17,327
RIGHT OF USE ASSETS	94,481	77,245	77,412
OTHER ASSETS	29,168	20,298	24,216
GOODWILL	292,318	252,193	245,925
INDEFINITE-LIVED INTANGIBLE ASSETS	7,380	7,401	7,361
OTHER INTANGIBLE ASSETS, NET	93,984	72,252	58,205
PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment	1,156,070	974,497	935,639
Less accumulated depreciation and amortization	(603,159)	(557,335)	(529,644)
PROPERTY, PLANT AND EQUIPMENT, NET	552,911	417,162	405,995
TOTAL ASSETS	3,014,247	2,404,891	2,350,620
CURRENT LIABILITIES:
Cash overdraft	10,812
Accounts payable	292,933	211,518	231,111
Accrued liabilities:
Compensation and benefits	249,242	166,478	171,472
Income taxes			3,024
Other	90,348	69,104	69,888
Current portion of lease liability	22,242	16,549	15,349
Current portion of long-term debt	93	100	2,760
TOTAL CURRENT LIABILITIES	665,670	463,749	493,604
LONG-TERM DEBT	310,119	311,607	311,267
LEASE LIABILITY	75,548	61,509	62,100
DEFERRED INCOME TAXES	39,198	25,266	22,478
OTHER LIABILITIES	46,238	59,608	47,367
TOTAL LIABILITIES	1,136,773	921,739	936,816
Controlling interest shareholders' equity:
Preferred stock, no par value; shares authorized 1,000,000; issued and outstanding, none
Common stock, $1 par value; shares authorized 80,000,000; issued and outstanding, 61,887,770, 61,205,780 and 61,186,636	61,888	61,206	61,187
Additional paid-in capital	239,563	218,224	216,002
Retained earnings	1,552,593	1,182,680	1,127,375
Accumulated other comprehensive loss	(3,278)	(1,794)	(6,974)
Total controlling interest shareholders' equity	1,850,766	1,460,316	1,397,590
Noncontrolling interest	26,708	22,836	16,214
TOTAL SHAREHOLDERS' EQUITY	1,877,474	1,483,152	1,413,804
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 3,014,247	$ 2,404,891	$ 2,350,620

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 25, 2021	Dec. 26, 2020	Sep. 26, 2020
SHAREHOLDERS' EQUITY:
Preferred stock, no par value (in dollars per share)	$ 0	$ 0	$ 0
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0	0
Preferred stock, shares outstanding (in shares)	0	0	0
Common Stock, Par or Stated Value Per Share	$ 1	$ 1	$ 1
Common stock, shares authorized (in shares)	80,000,000	80,000,000	80,000,000
Common stock, shares issued (in shares)	61,887,770	61,205,780	61,186,636
Common stock, shares outstanding (in shares)	61,887,770	61,205,780	61,186,636

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME
NET SALES	$ 2,093,784	$ 1,486,227	$ 6,619,329	$ 3,760,290
COST OF GOODS SOLD	1,766,229	1,245,153	5,583,926	3,147,049
GROSS PROFIT	327,555	241,074	1,035,403	613,241
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	169,467	134,649	504,104	357,770
OTHER GAINS, NET	(10,037)	(176)	(11,248)	(2,120)
EARNINGS FROM OPERATIONS	168,125	106,601	542,547	257,591
INTEREST EXPENSE	3,433	2,486	10,483	6,291
INTEREST AND INVESTMENT LOSS (INCOME)	371	(1,565)	(3,614)	(1,623)
EQUITY IN EARNINGS OF INVESTEE	946		2,411
NON-OPERATING (INCOME)/EXPENSE	4,750	921	9,280	4,668
EARNINGS BEFORE INCOME TAXES	163,375	105,680	533,267	252,923
INCOME TAXES	37,628	26,819	127,909	63,798
NET EARNINGS	125,747	78,861	405,358	189,125
LESS NET EARNINGS ATTRIBUTABLE TO NONCONTROLLING INTEREST	(4,706)	(1,657)	(7,624)	(5,299)
NET EARNINGS ATTRIBUTABLE TO CONTROLLING INTEREST	$ 121,041	$ 77,204	$ 397,734	$ 183,826
EARNINGS PER SHARE - BASIC (USD per share)	$ 1.94	$ 1.25	$ 6.40	$ 2.98
EARNINGS PER SHARE - DILUTED (USD per share)	$ 1.94	$ 1.25	$ 6.38	$ 2.98
OTHER COMPREHENSIVE INCOME:
NET EARNINGS	$ 125,747	$ 78,861	$ 405,358	$ 189,125
OTHER COMPREHENSIVE GAIN (LOSS)	(2,024)	1,687	(1,500)	(4,030)
COMPREHENSIVE INCOME	123,723	80,548	403,858	185,095
LESS COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTEREST	(4,496)	(1,922)	(7,608)	(3,354)
COMPREHENSIVE INCOME ATTRIBUTABLE TO CONTROLLING INTEREST	$ 119,227	$ 78,626	$ 396,250	$ 181,741

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehen- sive Earnings	Noncontrolling Interest	Total
Beginning balance at Dec. 28, 2019	$ 61,409	$ 192,173	$ 995,022	$ (4,889)	$ 14,018	$ 1,257,733
Increase (Decrease) in Stockholders' Equity
Net earnings			40,159		411	40,570
Foreign currency translation adjustment				(5,951)	(2,335)	(8,286)
Unrealized gain (loss) on debt securities				(270)		(270)
Distributions to noncontrolling interest					(299)	(299)
Additional purchases and adjustment of noncontrolling interest		130			(225)	(95)
Cash dividends			(7,730)			(7,730)
Issuance of shares under employee stock plans	10	309				319
Net issuance (forfeiture) of shares under stock grant programs	350	12,454	1			12,805
Issuance of shares under deferred compensation plans	89	(89)
Repurchase of shares	(756)		(28,456)			(29,212)
Expense associated with share-based compensation arrangements		1,404				1,404
Accrued expense under deferred compensation plans		5,343				5,343
Ending balance at Mar. 28, 2020	61,102	211,724	998,996	(11,110)	11,570	1,272,282
Beginning balance at Dec. 28, 2019	61,409	192,173	995,022	(4,889)	14,018	1,257,733
Increase (Decrease) in Stockholders' Equity
Net earnings						189,125
Ending balance at Sep. 26, 2020	61,187	216,002	1,127,375	(6,974)	16,214	1,413,804
Beginning balance at Mar. 28, 2020	61,102	211,724	998,996	(11,110)	11,570	1,272,282
Increase (Decrease) in Stockholders' Equity
Net earnings			66,463		3,231	69,694
Foreign currency translation adjustment				2,026	125	2,151
Unrealized gain (loss) on debt securities				688		688
Cash dividends			(7,644)			(7,644)
Issuance of shares under employee stock plans	10	367				377
Net issuance (forfeiture) of shares under stock grant programs	43	(174)	2			(129)
Issuance of shares under deferred compensation plans	14	(14)
Expense associated with share-based compensation arrangements		824				824
Accrued expense under deferred compensation plans		1,082				1,082
Ending balance at Jun. 27, 2020	61,169	213,809	1,057,817	(8,396)	14,926	1,339,325
Increase (Decrease) in Stockholders' Equity
Net earnings			77,204		1,657	78,861
Foreign currency translation adjustment				1,319	265	1,584
Unrealized gain (loss) on debt securities				103		103
Distributions to noncontrolling interest					(634)	(634)
Cash dividends			(7,646)			(7,646)
Issuance of shares under employee stock plans	7	338				345
Net issuance (forfeiture) of shares under stock grant programs	(1)	(56)				(57)
Issuance of shares under deferred compensation plans	12	(12)
Expense associated with share-based compensation arrangements		826				826
Accrued expense under deferred compensation plans		1,097				1,097
Ending balance at Sep. 26, 2020	61,187	216,002	1,127,375	(6,974)	16,214	1,413,804
Beginning balance at Dec. 26, 2020	61,206	218,224	1,182,680	(1,794)	22,836	1,483,152
Increase (Decrease) in Stockholders' Equity
Net earnings			103,311		940	104,251
Foreign currency translation adjustment				(374)	(526)	(900)
Unrealized gain (loss) on debt securities				(1,296)		(1,296)
Distributions to noncontrolling interest					(2,914)	(2,914)
Cash dividends			(9,274)			(9,274)
Issuance of shares under employee stock plans	6	357				363
Net issuance (forfeiture) of shares under stock grant programs	537	3,888	5			4,430
Issuance of shares under deferred compensation plans	89	(89)
Expense associated with share-based compensation arrangements		2,936				2,936
Accrued expense under deferred compensation plans		5,795				5,795
Ending balance at Mar. 27, 2021	61,838	231,111	1,276,722	(3,464)	20,336	1,586,543
Beginning balance at Dec. 26, 2020	61,206	218,224	1,182,680	(1,794)	22,836	1,483,152
Increase (Decrease) in Stockholders' Equity
Net earnings						405,358
Ending balance at Sep. 25, 2021	61,888	239,563	1,552,593	(3,278)	26,708	1,877,474
Beginning balance at Mar. 27, 2021	61,838	231,111	1,276,722	(3,464)	20,336	1,586,543
Increase (Decrease) in Stockholders' Equity
Net earnings			173,382		1,978	175,360
Foreign currency translation adjustment				1,759	720	2,479
Unrealized gain (loss) on debt securities				241		241
Cash dividends			(9,276)			(9,276)
Issuance of shares under employee stock plans	9	564				573
Net issuance (forfeiture) of shares under stock grant programs	(6)	(224)	5			(225)
Issuance of shares under deferred compensation plans	10	(10)
Expense associated with share-based compensation arrangements		2,728				2,728
Accrued expense under deferred compensation plans		1,140				1,140
Ending balance at Jun. 26, 2021	61,851	235,309	1,440,833	(1,464)	23,034	1,759,563
Increase (Decrease) in Stockholders' Equity
Net earnings			121,041		4,706	125,747
Foreign currency translation adjustment				(1,897)	(210)	(2,107)
Unrealized gain (loss) on debt securities				83		83
Additional purchases and adjustment of noncontrolling interest					(822)	(822)
Cash dividends			(9,281)			(9,281)
Issuance of shares under employee stock plans	10	573				583
Net issuance (forfeiture) of shares under stock grant programs	17	(115)				(98)
Issuance of shares under deferred compensation plans	10	(10)
Expense associated with share-based compensation arrangements		2,657				2,657
Accrued expense under deferred compensation plans		1,149				1,149
Ending balance at Sep. 25, 2021	$ 61,888	$ 239,563	$ 1,552,593	$ (3,278)	$ 26,708	$ 1,877,474

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Sep. 25, 2021	Jun. 26, 2021	Mar. 27, 2021	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020
Increase (Decrease) in Stockholders' Equity
Cash dividends per share (USD per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.125	$ 0.125	$ 0.125
Net issuance of shares under employee stock plans (in shares)	10,008	9,282	5,816	7,511	9,714	10,549
Net issuance (forfeiture) of shares under stock grant programs (in shares)	17,165	5,718	536,970	(1,382)	42,880	350,124
Issuance of shares under deferred compensation plans (in shares)	9,864	8,913	89,690	11,326	14,106	89,616
Repurchase of shares (in shares)						756,397

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 405,358	$ 189,125
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation	61,741	47,226
Amortization of intangibles	9,369	5,863
Expense associated with share-based and grant compensation arrangements	8,444	3,152
Deferred income taxes	(594)	110
Unrealized loss (gain) on investments and other	(1,756)	(81)
Equity in earnings of investee	2,411
Net gain on sale and disposition of assets	(10,482)	(662)
Changes in:
Accounts receivable	(141,088)	(211,238)
Inventories	(204,144)	(39,167)
Accounts payable and cash overdraft	53,437	85,354
Accrued liabilities and other	99,067	105,401
NET CASH PROVIDED BY OPERATING ACTIVITIES	281,763	185,083
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(110,092)	(67,024)
Proceeds from sale of property, plant and equipment	26,597	2,588
Acquisitions and purchases of non-controlling interest, net of cash received	(433,275)	(34,820)
Purchases of investments	(17,866)	(24,266)
Proceeds from sale of investments	9,857	22,281
Other	(3,478)	314
NET CASH USED IN INVESTING ACTIVITIES	(528,257)	(100,927)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under revolving credit facilities	886,966	6,862
Repayments under revolving credit facilities	(888,335)	(6,498)
Contingent consideration payments and other	(2,664)	(3,087)
Issuance of long-term debt		150,000
Proceeds from issuance of common stock	1,519	1,042
Dividends paid to shareholders	(27,831)	(23,020)
Distributions to noncontrolling interest	(2,914)	(932)
Repurchase of common stock		(29,212)
Other	(334)	23
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES	(33,593)	95,178
Effect of exchange rate changes on cash	(292)	(1,122)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(280,379)	178,212
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF YEAR	436,608	168,666
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	$ 156,229	$ 346,878

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SUPPLEMENTAL (Parenthetical) - USD ($) $ in Thousands	Sep. 25, 2021	Dec. 26, 2020	Sep. 26, 2020
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents, beginning of period	$ 436,507	$ 346,154	$ 168,336
Restricted cash, beginning of period	101	724	330
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF YEAR	436,608	346,878	168,666
Cash and cash equivalents, end of period	138,637	436,507	346,154
Restricted cash, end of period	17,592	101	724
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	$ 156,229	$ 436,608	$ 346,878

CONDENSED CONSOLIDATED STATEM_6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SUPPLEMENTAL AND NON-CASH FINANCING ACTIVITIES (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020
SUPPLEMENTAL INFORMATION:
Interest paid	$ 10,360	$ 4,112
Income taxes paid	136,893	47,301
NON-CASH INVESTING ACTIVITIES
Capital expenditures included in accounts payable	2,366
NON-CASH FINANCING ACTIVITIES:
Common stock issued under deferred compensation plans	$ 6,778	$ 6,195

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
BASIS OF PRESENTATION	Sep. 25, 2021
BASIS OF PRESENTATION
BASIS OF PRESENTATION	A. BASIS OF PRESENTATION The accompanying unaudited interim consolidated condensed financial statements (the “Financial Statements”) include our accounts and those of our wholly-owned and majority-owned subsidiaries and partnerships, and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, the Financial Statements do not include all the information and footnotes normally included in the annual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States. All intercompany transactions and balances have been eliminated. Certain prior year amounts have been reclassified to conform to the current year presentation. In our opinion, the Financial Statements contain all material adjustments necessary to present fairly our consolidated financial position, results of operations and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. These Financial Statements should be read in conjunction with the annual consolidated financial statements, and footnotes thereto, included in our Annual Report to Shareholders on Form 10-K for the fiscal year ended December 26, 2020. Seasonality has a significant impact on our working capital from March to August, which historically results in negative or modest cash flows from operations in our first and second quarters. Conversely, we experience a substantial decrease in working capital from September to February which typically results in significant cash flow from operations in our third and fourth quarters. For comparative purposes, we have included the September 26, 2020 balances in the accompanying unaudited condensed consolidated balance sheets.

FAIR VALUE

FAIR VALUE	9 Months Ended
FAIR VALUE	Sep. 25, 2021
FAIR VALUE
FAIR VALUE	B. FAIR VALUE We apply the provisions of ASC 820, Fair Value Measurements and Disclosures September 25, 2021 September 26, 2020 Quoted Prices with Quoted Prices with Prices in Other Prices with Prices in Other Prices with Active Observable Unobservable Active Observable Unobservable Markets Inputs Inputs Markets Inputs Inputs (Level 1) (Level 2) (Level 3) Total (Level 1) (Level 2) (Level 3) Total Money market funds $ 19 $ 2,631 $ — $ 2,650 $ 64 $ 3,133 $ — $ 3,197 Fixed income funds 962 17,021 — 17,983 248 16,522 — 16,770 Treasury securities 310 — — 310 — — — — Equity securities 18,543 — — 18,543 10,524 — — 10,524 Alternative investments — — 3,536 3,536 — — 1,926 1,926 Mutual funds: Domestic stock funds 9,968 — — 9,968 6,826 — — 6,826 International stock funds 1,675 — — 1,675 1,243 — — 1,243 Target funds 23 — — 23 260 — — 260 Bond funds 146 — — 146 208 — — 208 Alternative funds 497 — — 497 433 — — 433 Total mutual funds 12,309 — — 12,309 8,970 — — 8,970 Total $ 32,143 $ 19,652 $ 3,536 $ 55,331 $ 19,806 $ 19,655 $ 1,926 $ 41,387 Assets at fair value $ 32,143 $ 19,652 $ 3,536 $ 55,331 $ 19,806 $ 19,655 $ 1,926 $ 41,387 From the assets measured at fair value as of September 25, 2021, listed in the table above, $33.6 million of mutual funds, equity securities, and alternative investments are held in Investments, $0.1 million of money market funds are held in Cash and Cash Equivalents, $0.7 million of money market and mutual funds are held in Other Assets for our deferred compensation plan, and $18.3 million of fixed income funds and $2.6 million of money markets funds are held in Restricted Investments. We maintain money market, mutual funds, bonds, and/or equity securities in our non-qualified deferred compensation plan, our wholly owned licensed captive insurance company, and assets held in financial institutions. These funds are valued at prices quoted in an active exchange market and are included in “Cash and Cash Equivalents”, “Investments”, “Other Assets”, and “Restricted Investments”. We have elected not to apply the fair value option under ASC 825, Financial Instruments, In accordance with our investment policy, our wholly-owned captive, Ardellis Insurance Ltd. (“Ardellis”), maintains an investment portfolio, totaling $52.0 million as of September 25, 2021, which has been included in the aforementioned table of total investments. This portfolio consists of domestic and international equity securities, alternative investments, and fixed income bonds. Ardellis’ available for sale investment portfolio, including funds held with the State of Michigan, consists of the following (in thousands): September 25, 2021 September 26, 2020 Unrealized Unrealized Cost Gain Fair Value Cost Gain Fair Value Fixed Income $ 17,293 $ 690 $ 17,983 $ 15,750 $ 1,020 $ 16,770 Treasury Securities 310 — 310 — — — Equity 14,392 4,151 18,543 9,121 1,403 10,524 Mutual Funds 9,210 2,435 11,645 7,228 852 8,080 Alternative Investments 3,370 166 3,536 1,881 45 1,926 Total $ 44,575 $ 7,442 $ 52,017 $ 33,980 $ 3,320 $ 37,300 Our fixed income investments consist of a blend of US Government and Agency bonds and investment grade corporate bonds with varying maturities. Our equity investments consist of small, mid, and large cap growth and value funds, as well as international equity. Our mutual fund investments consist of domestic and international stock. Our alternative investments consist of a private real estate income trust which is valued as a Level 3 asset. The net unrealized gain of the portfolio was $7.4 million. Carrying amounts above are recorded in the investments and restricted investments line items within the balance sheet as of September 25, 2021 and September 26, 2020.

REVENUE RECOGNITION

REVENUE RECOGNITION	9 Months Ended
REVENUE RECOGNITION	Sep. 25, 2021
REVENUE RECOGNITION
REVENUE RECOGNITION	C. REVENUE RECOGNITION Within the three primary segments (Retail, Industrial, and Construction) that the Company operates, there are a variety of written agreements governing the sale of our products and services. The transaction price is stated at the purchase order level, which includes shipping and/or freight costs and any applicable governmental authority taxes. The majority of our contracts have a single performance obligation concentrated around the delivery of goods to the carrier, Free On Board (FOB) shipping point. Therefore, revenue is recognized when this performance obligation is satisfied. Generally, title and control passes at the time of shipment. In certain circumstances, the customer takes title when the shipment arrives at the destination. However, our shipping process is typically completed the same day. Certain customer products that we provide require installation by the Company or a 3 rd rd The Company utilizes rebates, credits, discounts and/or cash-based incentives with certain customers which are accounted for as variable consideration. We estimate these amounts based on the expected amount to be provided to customers and reduce revenues recognized. We believe that there will not be significant changes to our estimates of variable consideration. The allocation of these costs are applied at the invoice level and recognized in conjunction with revenue. Additionally, returns and refunds are estimated on a historical and expected basis which is a reduction of revenue recognized. Earnings on construction contracts are reflected in operations using over time accounting, under either cost to cost or units of delivery methods, depending on the nature of the business at individual operations, which is in accordance with ASC 606 as revenue is recognized when certain performance obligations are performed. Under over time accounting using the cost to cost method, revenues and related earnings on construction contracts are measured by the relationships of actual costs incurred relative to the total estimated costs. Under over time accounting using the units of delivery method, revenues and related earnings on construction contracts are measured by the relationships of actual units produced relative to the total number of units. Revisions in earnings estimates on the construction contracts are recorded in the accounting period in which the basis for such revisions becomes known. Projected losses on individual contracts are charged to operations in their entirety when such losses become apparent. Our construction contracts are generally entered into with a fixed price, and completion of the projects can range from 6 The following table presents our net sales disaggregated by revenue source (in thousands): Three Months Ended Nine Months Ended September 25, September 26, September 25, September 26, 2021 2020 % Change 2021 2020 % Change FOB Shipping Point Revenue $ 2,063,647 $ 1,454,220 41.9% $ 6,530,204 $ 3,663,140 78.3% Construction Contract Revenue 30,137 32,007 (5.8)% 89,125 97,150 (8.3)% Total Net Sales 2,093,784 1,486,227 40.9% $ 6,619,329 $ 3,760,290 76.0% The Construction segment comprises the construction contract revenue shown above. Construction contract revenue is primarily made up of site-built and framing customers. The following table presents the balances of over time accounting accounts which are included in “Other current assets” and “Accrued liabilities: Other”, respectively (in thousands): September 25, December 26, September 26, 2021 2020 2020 Cost and Earnings in Excess of Billings $ 3,776 $ 4,169 $ 4,130 Billings in Excess of Cost and Earnings 10,373 11,530 11,264

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
EARNINGS PER SHARE	Sep. 25, 2021
EARNINGS PER SHARE
EARNINGS PER SHARE	D. EARNINGS PER SHARE The computation of earnings per share (“EPS”) is as follows (in thousands): Three Months Ended Nine Months Ended September 25, September 26, September 25, September 26, 2021 2020 2021 2020 Numerator: Net earnings attributable to controlling interest $ 121,041 $ 77,204 $ 397,734 $ 183,826 Adjustment for earnings allocated to non-vested restricted common stock (3,952) (2,195) (12,800) (5,110) Net earnings for calculating EPS $ 117,089 $ 75,009 $ 384,934 $ 178,716 Denominator: Weighted average shares outstanding 62,266 61,548 62,162 61,642 Adjustment for non-vested restricted common stock (2,033) (1,750) (2,001) (1,713) Shares for calculating basic EPS 60,233 59,798 60,161 59,929 Effect of dilutive restricted common stock 168 20 137 19 Shares for calculating diluted EPS 60,401 59,818 60,298 59,948 Net earnings per share: Basic $ 1.94 $ 1.25 $ 6.40 $ 2.98 Diluted $ 1.94 $ 1.25 $ 6.38 $ 2.98

COMMITMENTS, CONTINGENCIES, AND

COMMITMENTS, CONTINGENCIES, AND GUARANTEES	9 Months Ended
COMMITMENTS, CONTINGENCIES, AND GUARANTEES	Sep. 25, 2021
COMMITMENTS, CONTINGENCIES, AND GUARANTEES
COMMITMENTS, CONTINGENCIES, AND GUARANTEES	E. COMMITMENTS, CONTINGENCIES, AND GUARANTEES We are self-insured for environmental impairment liability, including certain liabilities which are insured through a wholly owned subsidiary, Ardellis Insurance Ltd., a licensed captive insurance company. In addition, on September 25, 2021, we were parties either as plaintiff or defendant to a number of lawsuits and claims arising through the normal course of our business. In the opinion of management, our consolidated financial statements will not be materially affected by the outcome of these contingencies and claims. On September 25, 2021, we had outstanding purchase commitments on commenced capital projects of approximately $44.1 million. We provide a variety of warranties for products we manufacture. Historically, warranty claims have not been material. We also distribute products manufactured by other companies, some of which are no longer in business. While we do not warrant these products, we have received claims as a distributor of these products when the manufacturer no longer exists or has the ability to pay. Historically, these costs have not had a material effect on our consolidated financial statements. As part of our operations, we supply building materials and labor to site-built construction projects or we jointly bid on contracts with framing companies for such projects. In some instances, we are required to post payment and performance bonds to ensure the products and installation services are completed in accordance with our contractual obligations. We have agreed to indemnify the surety for claims properly made against these bonds. As of September 25, 2021, we had approximately $39.6 million outstanding payment and performance bonds for open projects. We had approximately $2.1 million in payment and performance bonds outstanding for completed projects which are still under warranty. On September 25, 2021, we had outstanding letters of credit totaling $52.6 million, primarily related to certain insurance contracts and industrial development revenue bonds described further below. In lieu of cash deposits, we provide irrevocable letters of credit in favor of our insurers to guarantee our performance under certain insurance contracts. As of September 25, 2021, we have irrevocable letters of credit outstanding totaling approximately $45.5 million for these types of insurance arrangements. We have reserves recorded on our balance sheet, in accrued liabilities, that reflect our expected future liabilities under these insurance arrangements. We are required to provide irrevocable letters of credit in favor of the bond trustees for all industrial development revenue bonds that have been issued. These letters of credit guarantee principal and interest payments to the bondholders. We currently have irrevocable letters of credit outstanding totaling approximately $7.1 million related to our outstanding industrial development revenue bonds. These letters of credit have varying terms but may be renewed at the option of the issuing banks. Certain wholly owned domestic subsidiaries have guaranteed the indebtedness of UFP Industries, Inc. in certain debt agreements, including the Series 2012, 2018 and 2020 Senior Notes and our revolving credit facility. The maximum exposure of these guarantees is limited to the indebtedness outstanding under these debt arrangements and this exposure will expire concurrent with the expiration of the debt agreements. We did not enter into any new guarantee arrangements during the third quarter of 2021 which would require us to recognize a liability on our balance sheet.

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	9 Months Ended
BUSINESS COMBINATIONS	Sep. 25, 2021
BUSINESS COMBINATIONS
BUSINESS COMBINATIONS	F. BUSINESS COMBINATIONS We completed the following acquisitions in 2021 and since the end of September 2020, which were accounted for using the purchase method in thousands unless otherwise noted: Net Company Acquisition Intangible Tangible Operating Name Date Purchase Price Assets Assets Segment April 29, 2021 $10,108 $ 7,099 $ 3,009 Construction Endurable Building Products, LLC (Endurable) Based near Minneapolis, Minnesota, Endurable is a leading manufacturer of customized structural aluminum systems and products for exterior purposes, such as deck framing, balconies, sunshades, railings and stairs. The company’s trademarked alumiLAST aluminum deck and balcony systems are known for their low-maintenance design and ease of installation. Endurable serves general contractors in the multifamily market throughout the U.S. and had sales of approximately $15 million in 2020. April 19, 2021 $8,549 $ 1,526 $ 7,023 Retail Walnut Hollow Farm, Inc. Walnut Hollow Farm, located in Wisconsin, is engaged in the business of designing, manufacturing, selling, and distributing wood products, tools, and accessories for the craft and hobby, outdoor sportsman art, personalized home décor, and hardware categories, with sales of approximately $11.6 million in 2020. April 12, 2021 $153,462 $ — $ 153,462 Retail Spartanburg Forest Products, Inc. Headquartered in Greer, South Carolina, Spartanburg Forest Products and its affiliates are a premier wood treating operation in the U.S., with approximately 150 employees and operations in five states. Its affiliates include Appalachian Forest Products, Innovative Design Industries, Blue Ridge Wood Preserving, Blue Ridge Wood Products, and Tidewater Wood Products and had combined sales of approximately $543.0 million in 2020. March 1, 2021 $4,724 $ 4,264 $ 460 Other J.C. Gilmore Pty Ltd (Gilmores) Founded in 1988 and operating from its distribution facility in Port Melbourne, Australia, Gilmores is a leading distributor in the industrial and construction industries of packaging tapes, stretch films, packaging equipment, strapping, construction protection products and other items, with 2020 sales of $15 million AUD ($10 million USD). December 28, 2020 $259,011 $ 66,899 $ 192,112 Retail/Industrial PalletOne, Inc. (PalletOne) Based in Bartow, Florida, PalletOne is a leading manufacturer of new pallets in the U.S., with 17 pallet manufacturing facilities in the southern and eastern regions of the country. The company also supplies other specialized industrial packaging, including custom bins and crates, and its Sunbelt Forest Products (Sunbelt) subsidiary operates five pressure-treating facilities in the Southeastern U.S. PalletOne and its affiliates had 2019 and 2020 sales of Net Company Acquisition Intangible Tangible Operating Name Date Purchase Price Assets Assets Segment November 10, 2020 $21,268 $ 11,923 $ 9,345 Construction Atlantic Prefab, Inc.; Exterior Designs, LLC; and Patriot Building Systems, LLC Based in Wilton, New Hampshire, Atlantic Prefab produces prefabricated steel wall panels and light gauge metal trusses. The company’s steel component and prefinished wall panel lines are new, value-added product additions for UFP Construction that help shorten project timelines. Exterior Designs is a leading installer of siding and exterior cladding such as fiber cement, ACM (aluminum composite material) panels, phenolic panels, and EIFS (exterior insulation and finish systems). The company is based in Londonderry, New Hampshire, and serves commercial and multi-family clients throughout the Northeast. Also based in Londonderry, Patriot Building Systems provides commercial and multi-family framing services in the Northeast and will focus on markets not currently served by companies of UFP Industries. The companies had combined annual sales of approximately $28 million. October 1, 2020 $5,936 $ 5,222 $ 714 Retail Fire Retardant Chemical Technologies, LLC (FRCT) Founded in 2014 and based in Matthews, North Carolina, FRCT’s business includes a research and development laboratory specializing in developing and testing a wide range of high-performance chemicals, including fire retardants and water repellants. The company had annual sales of approximately $6.4 million. September 30, 2020 $3,475 $ 7,267 $ (1,369) Other Enwrap Logistic & Packaging S.r.l. (Enwrap) Enwrap is a newly formed company dedicated to the logistics and packaging business of its predecessor, Job Service S.p.A. Headquartered in Milan, Italy, Enwrap provides high-value, mixed material industrial packaging and logistics services through eight locations in Italy. These locations generated annual sales of approximately $14 million. The intangible assets for the above acquisitions have not been finalized and allocated to their respective identifiable asset and goodwill accounts. In aggregate, acquisitions completed since the end of September 2020 and not consolidated with other operations contributed approximately $903.0 million in net sales and $26.0 million in operating profits during the first nine months of 2021.

SEGMENT REPORTING

SEGMENT REPORTING	9 Months Ended
SEGMENT REPORTING	Sep. 25, 2021
SEGMENT REPORTING
SEGMENT REPORTING	G. SEGMENT REPORTING The Company operates manufacturing, treating and distribution facilities internationally, but primarily in the United States. The business segments align with the following markets: UFP Retail Solutions, UFP Construction and UFP Industrial. The Company manages the operations of its individual locations primarily through a market-centered reporting structure under which each location is included in a business unit and business units are included in our Retail, Industrial, and Construction segments. In the case of locations which serve multiple segments, results are allocated and accounted for by segment. The exception to this market-centered reporting and management structure is the Company’s International segment, which comprises our Mexico, Canada, and Australia operations and sales and buying offices in other parts of the world. Our International segment and Ardellis (our insurance captive) have been included in the “All Other” column of the table below. The “Corporate” column includes purchasing, transportation and administrative functions that serve our operating segments. Operating results of Corporate primarily consists of over (under) allocated costs. The operating results of UFP Real Estate, Inc., which owns and leases real estate, and UFP Transportation Ltd., which owns and leases transportation equipment, are also included in the Corporate column. An inter-company lease charge is assessed to our operating segments for the use of these assets at fair market value rates. Total assets of the Corporate column include unallocated cash and cash equivalents, certain prepaid assets, certain property, equipment and other assets pertaining to the centralized activities of Corporate, UFP Real Estate, Inc., and UFP Transportation Ltd. The tables below are presented in thousands: Three Months Ended September 25, 2021 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 696,201 $ 573,234 $ 722,872 $ 98,689 $ 2,788 $ 2,093,784 Intersegment net sales 50,546 23,148 27,574 122,470 (223,738) — Segment operating profit (26,153) 70,408 84,205 20,283 19,382 168,125 Three Months Ended September 26, 2020 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 700,522 $ 282,124 $ 447,103 $ 56,700 $ (222) $ 1,486,227 Intersegment net sales 45,416 11,773 17,909 76,029 (151,127) — Segment operating profit 62,181 22,037 16,513 7,449 (1,579) 106,601 Nine Months Ended September 25, 2021 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 2,714,440 $ 1,633,289 $ 2,021,106 $ 243,736 $ 6,758 $ 6,619,329 Intersegment net sales 163,279 66,039 62,069 345,920 (637,307) — Segment operating profit 89,443 190,344 184,330 44,565 33,865 542,547 Nine Months Ended September 26, 2020 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 1,661,873 $ 763,046 $ 1,187,429 $ 148,503 $ (561) $ 3,760,290 Intersegment net sales 109,378 32,788 49,685 196,908 (388,759) — Segment operating profit 122,082 53,837 50,544 20,573 10,555 257,591 The following table presents goodwill by segment as of September 25, 2021, and December 26, 2020 (in thousands): Retail Industrial Construction All Other Corporate Total Balance as of December 26, 2020 $ 61,943 $ 87,827 $ 90,729 $ 11,694 $ — $ 252,193 2021 Acquisitions 18,441 43,844 2,427 4,176 — 68,888 2021 Purchase Accounting Adjustments (1,682) (17,937) (6,227) (2,575) — (28,421) Foreign Exchange, Net — — 101 (443) — (342) Balance as of September 25, 2021 $ 78,702 $ 113,734 $ 87,030 $ 12,852 $ — $ 292,318 The following table presents total assets by segment as of September 25, 2021, and December 26, 2020 (in thousands). Total Assets by Segment September 25, December 26, Segment Classification 2021 2020 % Change Retail $ 829,745 $ 510,464 62.5 % Industrial 740,206 416,487 77.7 Construction 725,419 510,972 42.0 All Other 284,626 196,856 44.6 Corporate 434,251 770,112 (43.6) Total Assets $ 3,014,247 $ 2,404,891 25.3 %

INCOME TAXES

INCOME TAXES	9 Months Ended
INCOME TAXES	Sep. 25, 2021
INCOME TAXES
INCOME TAXES	H. INCOME TAXES Effective tax rates differ from statutory federal income tax rates, primarily due to provisions for foreign, state and local income taxes and permanent tax differences. Our effective tax rate was 23.0% in the third quarter of 2021 compared to 25.4% for same period in 2020 and was 24.0% in the first nine months of 2021 compared to 25.2% for the same period in 2020.

COMMON STOCK

COMMON STOCK	9 Months Ended
COMMON STOCK	Sep. 25, 2021
COMMON STOCK
COMMON STOCK	I. COMMON STOCK Below is a summary of common stock issuances for the first nine months of 2021 and 2020 (in thousands, except average share price): September 25, 2021 Share Issuance Activity Common Stock Average Share Price Shares issued under the employee stock purchase plan 25 $ 71.18 Shares issued under the employee stock gift program 2 76.80 Shares issued under the director retainer stock program 4 69.80 Shares issued under the bonus plan 487 57.06 Shares issued under the executive stock match grants plan 77 60.24 Forfeitures (21) Total shares issued under stock grant programs 549 $ 57.64 Shares issued under the deferred compensation plans 108 $ 62.48 September 26, 2020 Share Issuance Activity Common Stock Average Share Price Shares issued under the employee stock purchase plan 28 $ 44.14 Shares issued under the employee stock gift program 2 45.93 Shares issued under the director retainer stock program 46 24.80 Shares issued under the bonus plan 271 47.51 Shares issued under the executive stock match grants plan 79 47.60 Forfeitures (7) Total shares issued under stock grant programs 391 $ 44.92 Shares issued under the deferred compensation plans 115 $ 53.85 During the first nine months of 2021, we did not repurchase any of our shares of common stock. During the first nine months of 2020, we repurchased approximately 756,000 shares of our common stock at an average share price of $38.62.

INVENTORIES

INVENTORIES	9 Months Ended
INVENTORIES	Sep. 25, 2021
INVENTORIES
INVENTORIES	J. INVENTORIES Inventories are stated at the lower of cost or net realizable value. The cost of inventories includes raw materials, direct labor, and manufacturing overhead. Cost is determined on a weighted average FIFO basis. Raw materials consist primarily of unfinished wood products and other materials expected to be manufactured or treated prior to sale, while finished goods represent various manufactured and treated wood products ready for sale. The Company writes down the value of inventory, the impact of which is reflected in cost of goods sold in the Condensed Consolidated Statement of Earnings and Comprehensive Income, if the cost of specific inventory items on hand exceeds the amount the Company expects to realize from the ultimate sale or disposal of the inventory. These estimates are based on management's judgment regarding future demand and market conditions and analysis of historical experience. The lower of cost or net realizable value adjustment to inventory as of September 25, 2021 and September 26, 2020 was $1.3 million and $0 , respectively.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	9 Months Ended
SUBSEQUENT EVENTS	Sep. 25, 2021
SUBSEQUENT EVENTS
Subsequent Events	K. SUBSEQUENT EVENTS On September 27, 2027, we acquired the equity of Shelter Products, Inc., for $6.5 million. Based in Haleyville, Alabama, Shelter Products provides distribution and logistics support to factory-built manufacturers through nine warehouses across the U.S. On October 29, 2021, we acquired the assets of The Box Pack Trust, operating as Boxpack Packaging (Boxpack) for $5.2 million. Based near Melbourne, Australia, Boxpack specializes in flexographic and lithographic cardboard packaging, using the latest CAD design and finishing techniques.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	9 Months Ended
BASIS OF PRESENTATION (Policies)	Sep. 25, 2021
BASIS OF PRESENTATION
Revenue Recognition	Within the three primary segments (Retail, Industrial, and Construction) that the Company operates, there are a variety of written agreements governing the sale of our products and services. The transaction price is stated at the purchase order level, which includes shipping and/or freight costs and any applicable governmental authority taxes. The majority of our contracts have a single performance obligation concentrated around the delivery of goods to the carrier, Free On Board (FOB) shipping point. Therefore, revenue is recognized when this performance obligation is satisfied. Generally, title and control passes at the time of shipment. In certain circumstances, the customer takes title when the shipment arrives at the destination. However, our shipping process is typically completed the same day. Certain customer products that we provide require installation by the Company or a 3 rd rd The Company utilizes rebates, credits, discounts and/or cash-based incentives with certain customers which are accounted for as variable consideration. We estimate these amounts based on the expected amount to be provided to customers and reduce revenues recognized. We believe that there will not be significant changes to our estimates of variable consideration. The allocation of these costs are applied at the invoice level and recognized in conjunction with revenue. Additionally, returns and refunds are estimated on a historical and expected basis which is a reduction of revenue recognized. Earnings on construction contracts are reflected in operations using over time accounting, under either cost to cost or units of delivery methods, depending on the nature of the business at individual operations, which is in accordance with ASC 606 as revenue is recognized when certain performance obligations are performed. Under over time accounting using the cost to cost method, revenues and related earnings on construction contracts are measured by the relationships of actual costs incurred relative to the total estimated costs. Under over time accounting using the units of delivery method, revenues and related earnings on construction contracts are measured by the relationships of actual units produced relative to the total number of units. Revisions in earnings estimates on the construction contracts are recorded in the accounting period in which the basis for such revisions becomes known. Projected losses on individual contracts are charged to operations in their entirety when such losses become apparent. Our construction contracts are generally entered into with a fixed price, and completion of the projects can range from 6

FAIR VALUE (Tables)

FAIR VALUE (Tables)	9 Months Ended
FAIR VALUE (Tables)	Sep. 25, 2021
FAIR VALUE
Assets measured at fair value	Assets measured at fair value are as follows (in thousands): September 25, 2021 September 26, 2020 Quoted Prices with Quoted Prices with Prices in Other Prices with Prices in Other Prices with Active Observable Unobservable Active Observable Unobservable Markets Inputs Inputs Markets Inputs Inputs (Level 1) (Level 2) (Level 3) Total (Level 1) (Level 2) (Level 3) Total Money market funds $ 19 $ 2,631 $ — $ 2,650 $ 64 $ 3,133 $ — $ 3,197 Fixed income funds 962 17,021 — 17,983 248 16,522 — 16,770 Treasury securities 310 — — 310 — — — — Equity securities 18,543 — — 18,543 10,524 — — 10,524 Alternative investments — — 3,536 3,536 — — 1,926 1,926 Mutual funds: Domestic stock funds 9,968 — — 9,968 6,826 — — 6,826 International stock funds 1,675 — — 1,675 1,243 — — 1,243 Target funds 23 — — 23 260 — — 260 Bond funds 146 — — 146 208 — — 208 Alternative funds 497 — — 497 433 — — 433 Total mutual funds 12,309 — — 12,309 8,970 — — 8,970 Total $ 32,143 $ 19,652 $ 3,536 $ 55,331 $ 19,806 $ 19,655 $ 1,926 $ 41,387 Assets at fair value $ 32,143 $ 19,652 $ 3,536 $ 55,331 $ 19,806 $ 19,655 $ 1,926 $ 41,387
Available for sale investment portfolio	Ardellis’ available for sale investment portfolio, including funds held with the State of Michigan, consists of the following (in thousands): September 25, 2021 September 26, 2020 Unrealized Unrealized Cost Gain Fair Value Cost Gain Fair Value Fixed Income $ 17,293 $ 690 $ 17,983 $ 15,750 $ 1,020 $ 16,770 Treasury Securities 310 — 310 — — — Equity 14,392 4,151 18,543 9,121 1,403 10,524 Mutual Funds 9,210 2,435 11,645 7,228 852 8,080 Alternative Investments 3,370 166 3,536 1,881 45 1,926 Total $ 44,575 $ 7,442 $ 52,017 $ 33,980 $ 3,320 $ 37,300

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	9 Months Ended
REVENUE RECOGNITION (Tables)	Sep. 25, 2021
REVENUE RECOGNITION
Schedule of Disaggregation of revenue	The following table presents our net sales disaggregated by revenue source (in thousands): Three Months Ended Nine Months Ended September 25, September 26, September 25, September 26, 2021 2020 % Change 2021 2020 % Change FOB Shipping Point Revenue $ 2,063,647 $ 1,454,220 41.9% $ 6,530,204 $ 3,663,140 78.3% Construction Contract Revenue 30,137 32,007 (5.8)% 89,125 97,150 (8.3)% Total Net Sales 2,093,784 1,486,227 40.9% $ 6,619,329 $ 3,760,290 76.0%
Schedule of percentage-of-completion balances	The following table presents the balances of over time accounting accounts which are included in “Other current assets” and “Accrued liabilities: Other”, respectively (in thousands): September 25, December 26, September 26, 2021 2020 2020 Cost and Earnings in Excess of Billings $ 3,776 $ 4,169 $ 4,130 Billings in Excess of Cost and Earnings 10,373 11,530 11,264

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
EARNINGS PER SHARE (Tables)	Sep. 25, 2021
EARNINGS PER SHARE
Schedule of Computation of earnings per share	The computation of earnings per share (“EPS”) is as follows (in thousands): Three Months Ended Nine Months Ended September 25, September 26, September 25, September 26, 2021 2020 2021 2020 Numerator: Net earnings attributable to controlling interest $ 121,041 $ 77,204 $ 397,734 $ 183,826 Adjustment for earnings allocated to non-vested restricted common stock (3,952) (2,195) (12,800) (5,110) Net earnings for calculating EPS $ 117,089 $ 75,009 $ 384,934 $ 178,716 Denominator: Weighted average shares outstanding 62,266 61,548 62,162 61,642 Adjustment for non-vested restricted common stock (2,033) (1,750) (2,001) (1,713) Shares for calculating basic EPS 60,233 59,798 60,161 59,929 Effect of dilutive restricted common stock 168 20 137 19 Shares for calculating diluted EPS 60,401 59,818 60,298 59,948 Net earnings per share: Basic $ 1.94 $ 1.25 $ 6.40 $ 2.98 Diluted $ 1.94 $ 1.25 $ 6.38 $ 2.98

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	9 Months Ended
BUSINESS COMBINATIONS (Tables)	Sep. 25, 2021
BUSINESS COMBINATIONS
Business Acquisitions Accounted for Using Purchase Method	We completed the following acquisitions in 2021 and since the end of September 2020, which were accounted for using the purchase method in thousands unless otherwise noted: Net Company Acquisition Intangible Tangible Operating Name Date Purchase Price Assets Assets Segment April 29, 2021 $10,108 $ 7,099 $ 3,009 Construction Endurable Building Products, LLC (Endurable) Based near Minneapolis, Minnesota, Endurable is a leading manufacturer of customized structural aluminum systems and products for exterior purposes, such as deck framing, balconies, sunshades, railings and stairs. The company’s trademarked alumiLAST aluminum deck and balcony systems are known for their low-maintenance design and ease of installation. Endurable serves general contractors in the multifamily market throughout the U.S. and had sales of approximately $15 million in 2020. April 19, 2021 $8,549 $ 1,526 $ 7,023 Retail Walnut Hollow Farm, Inc. Walnut Hollow Farm, located in Wisconsin, is engaged in the business of designing, manufacturing, selling, and distributing wood products, tools, and accessories for the craft and hobby, outdoor sportsman art, personalized home décor, and hardware categories, with sales of approximately $11.6 million in 2020. April 12, 2021 $153,462 $ — $ 153,462 Retail Spartanburg Forest Products, Inc. Headquartered in Greer, South Carolina, Spartanburg Forest Products and its affiliates are a premier wood treating operation in the U.S., with approximately 150 employees and operations in five states. Its affiliates include Appalachian Forest Products, Innovative Design Industries, Blue Ridge Wood Preserving, Blue Ridge Wood Products, and Tidewater Wood Products and had combined sales of approximately $543.0 million in 2020. March 1, 2021 $4,724 $ 4,264 $ 460 Other J.C. Gilmore Pty Ltd (Gilmores) Founded in 1988 and operating from its distribution facility in Port Melbourne, Australia, Gilmores is a leading distributor in the industrial and construction industries of packaging tapes, stretch films, packaging equipment, strapping, construction protection products and other items, with 2020 sales of $15 million AUD ($10 million USD). December 28, 2020 $259,011 $ 66,899 $ 192,112 Retail/Industrial PalletOne, Inc. (PalletOne) Based in Bartow, Florida, PalletOne is a leading manufacturer of new pallets in the U.S., with 17 pallet manufacturing facilities in the southern and eastern regions of the country. The company also supplies other specialized industrial packaging, including custom bins and crates, and its Sunbelt Forest Products (Sunbelt) subsidiary operates five pressure-treating facilities in the Southeastern U.S. PalletOne and its affiliates had 2019 and 2020 sales of Net Company Acquisition Intangible Tangible Operating Name Date Purchase Price Assets Assets Segment November 10, 2020 $21,268 $ 11,923 $ 9,345 Construction Atlantic Prefab, Inc.; Exterior Designs, LLC; and Patriot Building Systems, LLC Based in Wilton, New Hampshire, Atlantic Prefab produces prefabricated steel wall panels and light gauge metal trusses. The company’s steel component and prefinished wall panel lines are new, value-added product additions for UFP Construction that help shorten project timelines. Exterior Designs is a leading installer of siding and exterior cladding such as fiber cement, ACM (aluminum composite material) panels, phenolic panels, and EIFS (exterior insulation and finish systems). The company is based in Londonderry, New Hampshire, and serves commercial and multi-family clients throughout the Northeast. Also based in Londonderry, Patriot Building Systems provides commercial and multi-family framing services in the Northeast and will focus on markets not currently served by companies of UFP Industries. The companies had combined annual sales of approximately $28 million. October 1, 2020 $5,936 $ 5,222 $ 714 Retail Fire Retardant Chemical Technologies, LLC (FRCT) Founded in 2014 and based in Matthews, North Carolina, FRCT’s business includes a research and development laboratory specializing in developing and testing a wide range of high-performance chemicals, including fire retardants and water repellants. The company had annual sales of approximately $6.4 million. September 30, 2020 $3,475 $ 7,267 $ (1,369) Other Enwrap Logistic & Packaging S.r.l. (Enwrap) Enwrap is a newly formed company dedicated to the logistics and packaging business of its predecessor, Job Service S.p.A. Headquartered in Milan, Italy, Enwrap provides high-value, mixed material industrial packaging and logistics services through eight locations in Italy. These locations generated annual sales of approximately $14 million.

SEGMENT REPORTING (Tables)

SEGMENT REPORTING (Tables)	9 Months Ended
SEGMENT REPORTING (Tables)	Sep. 25, 2021
SEGMENT REPORTING
Segment Reporting	The tables below are presented in thousands: Three Months Ended September 25, 2021 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 696,201 $ 573,234 $ 722,872 $ 98,689 $ 2,788 $ 2,093,784 Intersegment net sales 50,546 23,148 27,574 122,470 (223,738) — Segment operating profit (26,153) 70,408 84,205 20,283 19,382 168,125 Three Months Ended September 26, 2020 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 700,522 $ 282,124 $ 447,103 $ 56,700 $ (222) $ 1,486,227 Intersegment net sales 45,416 11,773 17,909 76,029 (151,127) — Segment operating profit 62,181 22,037 16,513 7,449 (1,579) 106,601 Nine Months Ended September 25, 2021 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 2,714,440 $ 1,633,289 $ 2,021,106 $ 243,736 $ 6,758 $ 6,619,329 Intersegment net sales 163,279 66,039 62,069 345,920 (637,307) — Segment operating profit 89,443 190,344 184,330 44,565 33,865 542,547 Nine Months Ended September 26, 2020 Retail Industrial Construction All Other Corporate Total Net sales to outside customers $ 1,661,873 $ 763,046 $ 1,187,429 $ 148,503 $ (561) $ 3,760,290 Intersegment net sales 109,378 32,788 49,685 196,908 (388,759) — Segment operating profit 122,082 53,837 50,544 20,573 10,555 257,591
Schedule of Goodwill by Segment	The following table presents goodwill by segment as of September 25, 2021, and December 26, 2020 (in thousands): Retail Industrial Construction All Other Corporate Total Balance as of December 26, 2020 $ 61,943 $ 87,827 $ 90,729 $ 11,694 $ — $ 252,193 2021 Acquisitions 18,441 43,844 2,427 4,176 — 68,888 2021 Purchase Accounting Adjustments (1,682) (17,937) (6,227) (2,575) — (28,421) Foreign Exchange, Net — — 101 (443) — (342) Balance as of September 25, 2021 $ 78,702 $ 113,734 $ 87,030 $ 12,852 $ — $ 292,318
Schedule of assets by segment	Retail Industrial Construction All Other Corporate Total Balance as of December 26, 2020 $ 61,943 $ 87,827 $ 90,729 $ 11,694 $ — $ 252,193 2021 Acquisitions 18,441 43,844 2,427 4,176 — 68,888 2021 Purchase Accounting Adjustments (1,682) (17,937) (6,227) (2,575) — (28,421) Foreign Exchange, Net — — 101 (443) — (342) Balance as of September 25, 2021 $ 78,702 $ 113,734 $ 87,030 $ 12,852 $ — $ 292,318

COMMON STOCK (Tables)

COMMON STOCK (Tables)	9 Months Ended
COMMON STOCK (Tables)	Sep. 25, 2021
COMMON STOCK
Schedule of common stock issuances	Below is a summary of common stock issuances for the first nine months of 2021 and 2020 (in thousands, except average share price): September 25, 2021 Share Issuance Activity Common Stock Average Share Price Shares issued under the employee stock purchase plan 25 $ 71.18 Shares issued under the employee stock gift program 2 76.80 Shares issued under the director retainer stock program 4 69.80 Shares issued under the bonus plan 487 57.06 Shares issued under the executive stock match grants plan 77 60.24 Forfeitures (21) Total shares issued under stock grant programs 549 $ 57.64 Shares issued under the deferred compensation plans 108 $ 62.48 September 26, 2020 Share Issuance Activity Common Stock Average Share Price Shares issued under the employee stock purchase plan 28 $ 44.14 Shares issued under the employee stock gift program 2 45.93 Shares issued under the director retainer stock program 46 24.80 Shares issued under the bonus plan 271 47.51 Shares issued under the executive stock match grants plan 79 47.60 Forfeitures (7) Total shares issued under stock grant programs 391 $ 44.92 Shares issued under the deferred compensation plans 115 $ 53.85

FAIR VALUE - Asset Measured at

FAIR VALUE - Asset Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 25, 2021	Sep. 26, 2020
Money market funds \| Cash and Cash Equivalents
Fair Value
Investments at fair value	$ 100
Money market funds \| Restricted Investments
Fair Value
Investments at fair value	2,600
Fixed Income \| Restricted Investments
Fair Value
Investments at fair value	18,300
Mutual funds, equity and alternative investments \| Investments
Fair Value
Investments at fair value	33,600
Money market and mutual funds \| Other Assets
Fair Value
Investments at fair value	700
Ardellis Insurance Ltd.
Fair Value
Total Fair Value	52,017	$ 37,300
Estimate of Fair Value Measurement \| Recurring
Fair Value
Investments at fair value	55,331	41,387
Assets at fair value	55,331	41,387
Estimate of Fair Value Measurement \| Recurring \| Money market funds
Fair Value
Investments at fair value	2,650	3,197
Estimate of Fair Value Measurement \| Recurring \| Fixed Income
Fair Value
Investments at fair value	17,983	16,770
Estimate of Fair Value Measurement \| Recurring \| Treasury securities
Fair Value
Investments at fair value	310
Estimate of Fair Value Measurement \| Recurring \| Equity
Fair Value
Investments at fair value	18,543	10,524
Estimate of Fair Value Measurement \| Recurring \| Alternative Investments
Fair Value
Investments at fair value	3,536	1,926
Estimate of Fair Value Measurement \| Recurring \| Mutual Fund
Fair Value
Investments at fair value	12,309	8,970
Estimate of Fair Value Measurement \| Recurring \| Domestic stock
Fair Value
Investments at fair value	9,968	6,826
Estimate of Fair Value Measurement \| Recurring \| International stock funds
Fair Value
Investments at fair value	1,675	1,243
Estimate of Fair Value Measurement \| Recurring \| Target funds
Fair Value
Investments at fair value	23	260
Estimate of Fair Value Measurement \| Recurring \| Bond funds
Fair Value
Investments at fair value	146	208
Estimate of Fair Value Measurement \| Recurring \| Alternative funds
Fair Value
Investments at fair value	497	433
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1)
Fair Value
Investments at fair value	32,143	19,806
Assets at fair value	32,143	19,806
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Money market funds
Fair Value
Investments at fair value	19	64
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Fixed Income
Fair Value
Investments at fair value	962	248
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Treasury securities
Fair Value
Investments at fair value	310
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Equity
Fair Value
Investments at fair value	18,543	10,524
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Mutual Fund
Fair Value
Investments at fair value	12,309	8,970
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Domestic stock
Fair Value
Investments at fair value	9,968	6,826
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| International stock funds
Fair Value
Investments at fair value	1,675	1,243
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Target funds
Fair Value
Investments at fair value	23	260
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Bond funds
Fair Value
Investments at fair value	146	208
Estimate of Fair Value Measurement \| Recurring \| Quoted Prices in Active Markets (Level 1) \| Alternative funds
Fair Value
Investments at fair value	497	433
Estimate of Fair Value Measurement \| Recurring \| Prices with Other Observable Inputs (Level 2)
Fair Value
Investments at fair value	19,652	19,655
Assets at fair value	19,652	19,655
Estimate of Fair Value Measurement \| Recurring \| Prices with Other Observable Inputs (Level 2) \| Money market funds
Fair Value
Investments at fair value	2,631	3,133
Estimate of Fair Value Measurement \| Recurring \| Prices with Other Observable Inputs (Level 2) \| Fixed Income
Fair Value
Investments at fair value	17,021	16,522
Estimate of Fair Value Measurement \| Recurring \| Prices with Unobservable Inputs (Level 3)
Fair Value
Investments at fair value	3,536	1,926
Assets at fair value	3,536	1,926
Estimate of Fair Value Measurement \| Recurring \| Prices with Unobservable Inputs (Level 3) \| Alternative Investments
Fair Value
Investments at fair value	$ 3,536	$ 1,926

FAIR VALUE - Available for Sale

FAIR VALUE - Available for Sale Investment Portfolio (Details) - Ardellis Insurance Ltd. - USD ($) $ in Thousands	Sep. 25, 2021	Sep. 26, 2020
Available-for-sale securities
Total Securities Cost	$ 44,575	$ 33,980
Unrealized Gain (Loss)	7,442	3,320
Total Fair Value	52,017	37,300
Fixed Income
Available-for-sale securities
Debt Securities Cost	17,293	15,750
Debt Securities Unrealized Gain/(Loss)	690	1,020
Debt Securities Fair Value	17,983	16,770
Treasury securities
Available-for-sale securities
Debt Securities Cost	310
Debt Securities Fair Value	310
Equity
Available-for-sale securities
Equity Securities Cost	14,392	9,121
Equity Securities Unrealized Gain/(Loss)	4,151	1,403
Equity Securities Fair Value	18,543	10,524
Mutual Fund
Available-for-sale securities
Debt Securities Cost	9,210	7,228
Debt Securities Unrealized Gain/(Loss)	2,435	852
Debt Securities Fair Value	11,645	8,080
Alternative Investments
Available-for-sale securities
Debt Securities Cost	3,370	1,881
Debt Securities Unrealized Gain/(Loss)	166	45
Debt Securities Fair Value	$ 3,536	$ 1,926

REVENUE RECOGNITION - Disaggreg

REVENUE RECOGNITION - Disaggregated revenue (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021USD ($)item	Sep. 26, 2020USD ($)	Sep. 25, 2021USD ($)item	Sep. 26, 2020USD ($)
Revenue Recognition.
Number of markets in which the entity operates (in markets) \| item	3		3
NET SALES	$ 2,093,784	$ 1,486,227	$ 6,619,329	$ 3,760,290
Change %	40.90%		76.00%
FOB Shipping Point Revenue
Revenue Recognition.
NET SALES	$ 2,063,647	1,454,220	$ 6,530,204	3,663,140
Change %	41.90%		78.30%
Construction Contract Revenue
Revenue Recognition.
NET SALES	$ 30,137	$ 32,007	$ 89,125	$ 97,150
Change %	(5.80%)		(8.30%)
Minimum \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-09-26 \| Construction Contract Revenue
Revenue Recognition.
Number of months to complete contract projects	6 months		6 months
Maximum \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-09-26 \| Construction Contract Revenue
Revenue Recognition.
Number of months to complete contract projects	18 months		18 months

REVENUE RECOGNITION - Percentag

REVENUE RECOGNITION - Percentage of completion (Details) - USD ($) $ in Thousands	Sep. 25, 2021	Dec. 26, 2020	Sep. 26, 2020
REVENUE RECOGNITION
Cost and Earnings in Excess of Billings	$ 3,776	$ 4,169	$ 4,130
Billings in Excess of Cost and Earnings	$ 10,373	$ 11,530	$ 11,264

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Numerator:
Net earnings attributable to controlling interest	$ 121,041	$ 77,204	$ 397,734	$ 183,826
Adjustment for earnings allocated to non-vested restricted common stock	(3,952)	(2,195)	(12,800)	(5,110)
Net earnings for calculating EPS	$ 117,089	$ 75,009	$ 384,934	$ 178,716
Denominator:
Weighted average shares outstanding (in shares)	62,266	61,548	62,162	61,642
Adjustment for non-vested restricted common stock (in shares)	(2,033)	(1,750)	(2,001)	(1,713)
Shares for calculating basic EPS (in shares)	60,233	59,798	60,161	59,929
Effect of dilutive restricted common stock (in shares)	168	20	137	19
Shares for calculating diluted EPS (in shares)	60,401	59,818	60,298	59,948
Net earnings per share
Basic (USD per share)	$ 1.94	$ 1.25	$ 6.40	$ 2.98
Diluted (USD per share)	$ 1.94	$ 1.25	$ 6.38	$ 2.98

COMMITMENTS, CONTINGENCIES, A_2

COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) $ in Millions	9 Months Ended
	Sep. 25, 2021USD ($)
Long-term commitment
Outstanding purchase commitments on capital projects	$ 44.1
Surety Bonds and Letters of Credit
Outstanding letters of credit	52.6
Open Projects
Surety Bonds and Letters of Credit
Payment and performance bonds outstanding	39.6
Completed Projects
Surety Bonds and Letters of Credit
Payment and performance bonds outstanding	2.1
Insurance Contracts
Surety Bonds and Letters of Credit
Outstanding letters of credit	45.5
Revenue Bonds
Surety Bonds and Letters of Credit
Outstanding letters of credit	$ 7.1

BUSINESS COMBINATIONS (Details)

BUSINESS COMBINATIONS (Details) $ in Thousands, $ in Millions	Apr. 29, 2021USD ($)	Apr. 19, 2021USD ($)	Apr. 12, 2021USD ($)employeestate	Mar. 01, 2021USD ($)	Mar. 01, 2021AUD ($)	Dec. 28, 2020USD ($)facility	Nov. 10, 2020USD ($)	Oct. 01, 2020USD ($)	Sep. 30, 2020USD ($)location	Sep. 25, 2021USD ($)
Business Acquisition
Aggregate acquisitions' net sales										$ 903,000
Aggregate acquisitions' operating profit										$ 26,000
Endurable Building Products \| Construction
Business Acquisition
Purchase Price	$ 10,108
Percentage of assets purchased (as a percent)	100.00%
Intangible Assets	$ 7,099
Net Tangible Assets	3,009
Acquired entity, prior year sales	$ 15,000
Walnut Hollow Farm, Inc. \| Retail
Business Acquisition
Purchase Price		$ 8,549
Percentage of assets purchased (as a percent)		100.00%
Intangible Assets		$ 1,526
Net Tangible Assets		7,023
Acquired entity, prior year sales		$ 11,600
Spartanburg Forest Products, Inc. \| Retail
Business Acquisition
Purchase Price			$ 153,462
Percentage of assets purchased (as a percent)			100.00%
Net Tangible Assets			$ 153,462
Acquired entity, prior year sales			$ 543,000
Number of Employees \| employee			150
Number of states in which the entity operates \| state			5
J. C. Gilmore Pty Ltd \| All Other
Business Acquisition
Purchase Price				$ 4,724
Percentage of assets purchased (as a percent)				100.00%
Intangible Assets				$ 4,264
Net Tangible Assets				460
Acquired entity, prior year sales				$ 10,000	$ 15
PalletOne \| Industrial
Business Acquisition
Purchase Price						$ 259,011
Percentage of stock purchase (as a percent)						100.00%
Intangible Assets						$ 66,899
Net Tangible Assets						192,112
Acquired entity, prior year sales						525,000
Acquired entity, trailing 12-months sales						$ 698,000
Number of pallet manufacturing facilities \| facility						17
Number of pressure-treating facilities \| facility						5
Atlantic Prefab, Inc., Exterior Designs, LLC and Patriot Building Systems, LLC \| Construction
Business Acquisition
Purchase Price							$ 21,268
Percentage of assets purchased (as a percent)							100.00%
Intangible Assets							$ 11,923
Net Tangible Assets							9,345
Acquired entity, prior year sales							$ 28,000
FRCT \| Retail
Business Acquisition
Purchase Price								$ 5,936
Percentage of assets purchased (as a percent)								100.00%
Intangible Assets								$ 5,222
Net Tangible Assets								714
Acquired entity, prior year sales								$ 6,400
Enwrap \| All Other
Business Acquisition
Purchase Price									$ 3,475
Percentage of stock purchase (as a percent)									50.00%
Number of plant locations \| location									8
Intangible Assets									$ 7,267
Net Tangible Assets									(1,369)
Acquired entity, prior year sales									$ 14,000

SEGMENT REPORTING (Details)

SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
SEGMENT REPORTING (Details) - USD ($) $ in Thousands	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Segment Reporting
Net sales	$ 2,093,784	$ 1,486,227	$ 6,619,329	$ 3,760,290
Segment operating profit	168,125	106,601	542,547	257,591
Intersegment net sales
Segment Reporting
Net sales	(223,738)	(151,127)	(637,307)	(388,759)
Corporate
Segment Reporting
Net sales	2,788	(222)	6,758	(561)
Segment operating profit	19,382	(1,579)	33,865	10,555
Retail
Segment Reporting
Net sales	696,201	700,522	2,714,440	1,661,873
Segment operating profit	(26,153)	62,181	89,443	122,082
Retail \| Intersegment net sales
Segment Reporting
Net sales	50,546	45,416	163,279	109,378
Industrial
Segment Reporting
Net sales	573,234	282,124	1,633,289	763,046
Segment operating profit	70,408	22,037	190,344	53,837
Industrial \| Intersegment net sales
Segment Reporting
Net sales	23,148	11,773	66,039	32,788
Construction
Segment Reporting
Net sales	722,872	447,103	2,021,106	1,187,429
Segment operating profit	84,205	16,513	184,330	50,544
Construction \| Intersegment net sales
Segment Reporting
Net sales	27,574	17,909	62,069	49,685
All Other
Segment Reporting
Net sales	98,689	56,700	243,736	148,503
Segment operating profit	20,283	7,449	44,565	20,573
All Other \| Intersegment net sales
Segment Reporting
Net sales	$ 122,470	$ 76,029	$ 345,920	$ 196,908

SEGMENT REPORTING - Goodwill (D

SEGMENT REPORTING - Goodwill (Details) $ in Thousands	9 Months Ended
SEGMENT REPORTING - Goodwill (Details) $ in Thousands	Sep. 25, 2021USD ($)
Goodwill
Goodwill, Beginning Balance	$ 252,193
Acquisitions	68,888
Purchase Accounting Adjustments	(28,421)
Foreign Exchange, Net	(342)
Goodwill, Ending Balance	292,318
Retail
Goodwill
Goodwill, Beginning Balance	61,943
Acquisitions	18,441
Purchase Accounting Adjustments	(1,682)
Goodwill, Ending Balance	78,702
Construction
Goodwill
Goodwill, Beginning Balance	90,729
Acquisitions	2,427
Purchase Accounting Adjustments	(6,227)
Foreign Exchange, Net	101
Goodwill, Ending Balance	87,030
Industrial
Goodwill
Goodwill, Beginning Balance	87,827
Acquisitions	43,844
Purchase Accounting Adjustments	(17,937)
Goodwill, Ending Balance	113,734
All Other
Goodwill
Goodwill, Beginning Balance	11,694
Acquisitions	4,176
Purchase Accounting Adjustments	(2,575)
Foreign Exchange, Net	(443)
Goodwill, Ending Balance	$ 12,852

SEGMENT REPORTING - Assets (Det

SEGMENT REPORTING - Assets (Details) - USD ($) $ in Thousands	Sep. 25, 2021	Dec. 26, 2020	Sep. 26, 2020
Segment Reporting
Segment assets	$ 3,014,247	$ 2,404,891	$ 2,350,620
Change in assets (as a percent)	25.30%
Corporate
Segment Reporting
Segment assets	$ 434,251	770,112
Change in assets (as a percent)	(43.60%)
Retail
Segment Reporting
Segment assets	$ 829,745	510,464
Change in assets (as a percent)	62.50%
Construction
Segment Reporting
Segment assets	$ 725,419	510,972
Change in assets (as a percent)	42.00%
Industrial
Segment Reporting
Segment assets	$ 740,206	416,487
Change in assets (as a percent)	77.70%
All Other
Segment Reporting
Segment assets	$ 284,626	$ 196,856
Change in assets (as a percent)	44.60%

INCOME TAXES (Details)

INCOME TAXES (Details)	3 Months Ended		9 Months Ended
INCOME TAXES (Details)	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
INCOME TAXES
Effective income tax rate	23.00%	25.40%	24.00%	25.20%

COMMON STOCK - Common Stock Iss

COMMON STOCK - Common Stock Issuances (Details) - $ / shares	3 Months Ended						9 Months Ended
	Sep. 25, 2021	Jun. 26, 2021	Mar. 27, 2021	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Sep. 25, 2021	Sep. 26, 2020
Common Stock
Repurchase of common stock						756,397		756,000
Common stock issued, net of forfeitures	17,165	5,718	536,970	(1,382)	42,880	350,124
Average Share Price
Repurchase of common stock (dollars per share)								$ 38.62
Stock Purchase Plan
Common Stock
Common stock issued							25,000	28,000
Average Share Price
Common stock issued (dollars per share)	$ 71.18			$ 44.14			$ 71.18	$ 44.14
Stock Gift Program
Common Stock
Common stock issued							2,000	2,000
Average Share Price
Common stock issued (dollars per share)	76.80			45.93			$ 76.80	$ 45.93
Stock Retainer Plan
Common Stock
Common stock issued							4,000	46,000
Average Share Price
Common stock issued (dollars per share)	69.80			24.80			$ 69.80	$ 24.80
LTSIP
Common Stock
Common stock issued							487,000	271,000
Average Share Price
Common stock issued (dollars per share)	57.06			47.51			$ 57.06	$ 47.51
Executive Stock Match Grants
Common Stock
Common stock issued							77,000	79,000
Average Share Price
Common stock issued (dollars per share)	60.24			47.60			$ 60.24	$ 47.60
Deferred Compensation Plans
Common Stock
Common stock issued							108,000	115,000
Average Share Price
Common stock issued (dollars per share)	62.48			53.85			$ 62.48	$ 53.85
Stock grant programs
Common Stock
Common stock issued							549,000	391,000
Forfeitures							(21,000)	(7,000)
Average Share Price
Common stock issued (dollars per share)	$ 57.64			$ 44.92			$ 57.64	$ 44.92

INVENTORIES (Details)

INVENTORIES (Details) - USD ($)	9 Months Ended
INVENTORIES (Details) - USD ($)	Sep. 25, 2021	Sep. 26, 2020
INVENTORIES
Adjustments to inventory	$ 1,300,000	$ 0

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - Subsequent Event $ in Millions	Oct. 29, 2021USD ($)	Sep. 27, 2021USD ($)warehouse
Shelter Products
Subsequent Event
Purchase Price		$ 6.5
Number of warehouses \| warehouse		9
Boxpack Packaging
Subsequent Event
Purchase Price	$ 5.2