UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549

                                 FORM 10-Q


(Mark One)
[ X ]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 
       EXCHANGE ACT OF 1934

For the Quarterly period ended:  September 30, 1998
                                 ------------------

                                     OR

[   ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
       SECURITIES EXCHANGE ACT OF 1934

        For the transition period from       to
                                       -----    -----

Commission file number:  0-23804
                         -------

                        Simpson Manufacturing Co., Inc.
            ------------------------------------------------------
            (Exact name of registrant as specified in its charter)

                  California                            94-3196943
        -------------------------------            -------------------
        (State or other jurisdiction of             (I.R.S. Employer
         incorporation or organization)            Identification No.)

              4637 Chabot Drive, Suite 200, Pleasanton, CA 94588
            ------------------------------------------------------
                   (Address of principal executive offices)

     (Registrant's telephone number, including area code):  (925)460-9912
                                                             ------------

  Indicate by check mark whether the registrant (1) has filed all 
reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such shorter 
period that the registrant was required to file such reports), and (2) has 
been subject to such filing requirements for the past 90 days.

Yes  X   No
    ---     ---

  The number of shares of the Registrant's Common Stock outstanding as of 
September 30, 1998:  11,571,943
                     ----------


PART I -- FINANCIAL INFORMATION

Item 1. Financial Statements.






             SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
                   CONDENSED CONSOLIDATED BALANCE SHEETS


                                                 September 30,            December 31,
                                          ----------------------------
                                                  (Unaudited)
                                              1998            1997            1997
                                          ------------    ------------    ------------
                                                                 
               ASSETS
Current assets  
  Cash and cash equivalents              $  34,515,012    $ 15,336,889    $ 19,418,689
  Trade accounts receivable, net            38,265,344      36,272,399      24,625,568
  Inventories                               51,699,130      54,342,293      54,982,945
  Deferred income taxes                      3,289,767       3,462,455       3,536,750
  Other current assets                       1,504,676       1,055,616       1,723,586
                                          ------------    ------------    ------------
    Total current assets                   129,273,929     110,469,652     104,287,538
      
Net property, plant and equipment           53,462,633      37,358,613      42,925,088
Investments                                    535,773         537,509         559,200
Other noncurrent assets                      2,993,033       3,270,224       2,993,114
                                          ------------    ------------    ------------
      Total assets                        $186,265,368    $151,635,998    $150,764,940
                                          ============    ============    ============


  LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities
  Notes Payable and current portion
    of long-term debt                     $    331,724    $     29,943    $     29,605
  Trade accounts payable                    14,166,453      12,650,774       8,813,196
  Accrued liabilities                        5,416,675       5,845,211       5,506,903
  Income taxes payable                       1,304,227       1,582,591               -
  Accrued profit sharing trust 
    contributions                            2,463,741       2,251,234       2,886,875
  Accrued cash profit sharing 
    and commissions                          5,009,136       4,770,529       3,094,834
  Accrued workers' compensation                779,272         809,272         659,272
                                          ------------    ------------    ------------
    Total current liabilities               29,471,228      27,939,554      20,990,685

Long-term debt, net of current portion       2,722,720               -               -
Deferred income taxes and 
  long-term liabilities                        592,453         905,183         823,732
                                          ------------    ------------    ------------
    Total liabilities                       32,786,401      28,844,737      21,814,417
                                          ------------    ------------    ------------

Commitments and contingencies (Notes 5 and 6)

Shareholders' equity
  Common stock                              33,607,488      32,044,605      32,377,563
  Retained earnings                        120,118,389      90,829,387      96,848,685
  Accumulated other comprehensive income      (246,910)        (82,731)       (275,725)
                                          ------------    ------------    ------------
    Total shareholders' equity             153,478,967     122,791,261     128,950,523
                                          ------------    ------------    ------------
      Total liabilities and 
        shareholders' equity              $186,265,368    $151,635,998    $150,764,940
                                          ============    ============    ============




                    The accompanying notes are an integral part of these 
                        condensed consolidated financial statements.



                   SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
                   CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                                      (UNAUDITED)






                                             Three Months Ended              Nine Months Ended
                                                September 30,                  September 30,
                                        ----------------------------    ----------------------------
                                            1998            1997            1998            1997
                                        ------------    ------------    ------------    ------------
                                                                               

Net sales                               $ 77,207,820    $ 68,824,611    $207,248,839    $186,306,707
Cost of sales                             47,024,623      40,363,583     126,114,476     112,200,433
                                        ------------    ------------    ------------    ------------
    Gross profit                          30,183,197      28,461,028      81,134,363      74,106,274
                                        ------------    ------------    ------------    ------------

Operating expenses:
  Selling                                  6,550,624       5,892,494      18,304,870      17,467,520
  General and administrative               8,584,612       8,665,462      24,365,243      22,969,505
  Compensation related to stock plans         18,000         290,000         120,000         290,000
                                        ------------    ------------    ------------    ------------
                                          15,153,236      14,847,956      42,790,113      40,727,025
                                        ------------    ------------    ------------    ------------

    Income from operations                15,029,961      13,613,072      38,344,250      33,379,249

Interest income, net                         232,500         106,144         553,454         248,233
                                        ------------    ------------    ------------    ------------

    Income before income taxes            15,262,461      13,719,216      38,897,704      33,627,482

Provision for income taxes                 6,027,000       5,531,001      15,628,000      13,661,001
                                        ------------    ------------    ------------    ------------

    Net income                          $  9,235,461    $  8,188,215    $ 23,269,704    $ 19,966,481
                                        ============    ============    ============    ============


Net income per common share
  Basic                                 $       0.80    $       0.71    $       2.01    $       1.74
  Diluted                               $       0.77    $       0.68    $       1.93    $       1.67

Number of shares outstanding
  Basic                                   11,570,904      11,475,850      11,554,623      11,464,393
  Diluted                                 12,028,293      12,012,522      12,047,356      11,946,675




                  SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
              CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
                                      (UNAUDITED)





                                             Three Months Ended              Nine Months Ended
                                                September 30,                  September 30,
                                        ----------------------------    ----------------------------
                                            1998            1997            1998            1997
                                        ------------    ------------    ------------    ------------
                                                                               

Net income                              $  9,235,461    $  8,188,215    $ 23,269,704    $ 19,966,481

Other comprehensive income, net of tax:
  Foreign currency translation 
    adjustments                               92,451         (98,401)         28,815        (283,185)
                                        ------------    ------------    ------------    ------------

Comprehensive income                    $  9,327,912    $  8,089,814    $ 23,298,519    $ 19,683,296
                                        ============    ============    ============    ============




                    The accompanying notes are an integral part of these 
                        condensed consolidated financial statements.



                   SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
                    CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOW
                                      (UNAUDITED)





                                                                 Nine Months
                                                             Ended September 30,  
                                                        ----------------------------
                                                            1998            1997
                                                        ------------    ------------
                                                                  
CASH FLOWS FROM OPERATING ACTIVITIES
  Net income                                            $ 23,269,704    $ 19,966,481
                                                        ------------    ------------
  Adjustments to reconcile net income to net cash
    provided by operating activities:
    Loss (gain) on sale of capital equipment                  17,918         (15,368)
    Depreciation and amortization                          6,476,887       5,459,743
    Deferred income taxes and long-term liabilities           15,702        (790,798)
    Equity in income of affiliates                            (9,000)       (110,000)
    Noncash compensation related to stock plans              169,894         103,500
    Changes in operating assets and liabilities, net of
      effects of acquisitions:
      Trade accounts receivable                          (13,609,741)    (14,187,289)
      Trade accounts payable                               5,353,257       1,342,138
      Income taxes payable                                 1,859,638       1,695,718
      Inventories                                          3,297,761      (6,000,885)
      Accrued liabilities                                    (90,228)        720,500
      Accrued profit sharing trust contributions            (423,134)       (194,767)
      Accrued cash profit sharing and commissions          1,914,302       2,478,472
      Other current assets                                   218,911         (32,566)
      Other noncurrent assets                               (180,252)        (46,878)
      Accrued workers' compensation                          120,000               -
                                                        ------------    ------------
        Total adjustments                                  5,131,915      (9,578,480) 
                                                        ------------    ------------

        Net cash provided by operating activities         28,401,619      10,388,001
                                                        ------------    ------------

Cash flows from investing activities
  Capital expenditures                                   (16,874,152)     (9,679,324)
  Proceeds from sale of equipment                             39,397          56,021
  Proceeds from sale of short-term investments                     -       3,995,333
  Acquisitions, net of cash and equity interest 
    already owned                                                  -      (9,334,340)
                                                        ------------    ------------
    Net cash used in investing activities                (16,834,755)    (14,962,310)
                                                        ------------    ------------

Cash flows from financing activities
  Issuance of debt, net of repayments                      3,024,839        (260,304)
  Issuance of Company's common stock                         504,620         356,205
                                                        ------------    ------------
    Net cash provided by financing activities              3,529,459          95,901
                                                        ------------    ------------

      Net increase (decrease) in cash and 
        cash equivalents                                  15,096,323      (4,478,408)
Cash and cash equivalents at beginning of period          19,418,689      19,815,297
                                                        ------------    ------------
Cash and cash equivalents at end of period              $ 34,515,012    $ 15,336,889
                                                        ============    ============




                    The accompanying notes are an integral part of these 
                        condensed consolidated financial statements.


                SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS


1.  Basis of Presentation

Interim Period Reporting

The accompanying unaudited interim condensed consolidated financial 
statements have been prepared pursuant to the rules and regulations for 
reporting on Form 10-Q. Accordingly, certain information and footnotes 
required by generally accepted accounting principles have been condensed 
or omitted. These interim statements should be read in conjunction with 
the consolidated financial statements and the notes thereto included in 
Simpson Manufacturing Co., Inc.'s (the "Company's") 1997 Annual Report on 
Form 10-K (the "1997 Annual Report").

The unaudited quarterly condensed consolidated financial statements have 
been prepared on the same basis as the audited annual consolidated 
financial statements, and in the opinion of management, contain all 
adjustments (consisting of only normal recurring adjustments) necessary to 
present fairly the financial information set forth therein, in accordance 
with generally accepted accounting principles. The year-end condensed 
consolidated balance sheet data was derived from audited financial 
statements, but does not include all disclosures required by generally 
accepted accounting principles. The Company's quarterly results may be 
subject to fluctuations. As a result, the Company believes the results of 
operations for the interim periods are not necessarily indicative of the 
results to be expected for any future period.

Net Income Per Common Share

Basic net income per common share is computed based upon the weighted 
average number of common shares outstanding. Common equivalent shares, 
using the treasury stock method, are included in the diluted per-share 
calculations for all periods when the effect of their inclusion is 
dilutive.

The following is a reconciliation of basic earnings per share ("EPS") to 
diluted EPS:





                                       Three Months Ended                  Three Months Ended
                                       September 30, 1998                  September 30, 1997
                               ----------------------------------  ----------------------------------
                                                            Per                                 Per
                                  Income        Shares     Share      Income        Shares     Share
                               ------------  ------------  ------  ------------  ------------  ------
                                                                             

Basic EPS
Income available to 
  common shareholders          $  9,235,461    11,570,904  $ 0.80  $  8,188,215    11,475,850  $ 0.71

Effect of Dilutive Securities
Stock options                             -       457,389   (0.03)            -       536,672   (0.03)
                               ------------  ------------  ------  ------------  ------------  ------

Diluted EPS
Income available to 
  common shareholders          $  9,235,461    12,028,293  $ 0.77  $  8,188,215    12,012,522  $ 0.68
                               ============  ============  ======  ============  ============  ======


                                       Nine Months Ended                   Nine Months Ended
                                       September 30, 1998                  September 30, 1997
                               ----------------------------------  ----------------------------------
                                                            Per                                 Per
                                  Income        Shares     Share      Income        Shares     Share
                               ------------  ------------  ------  ------------  ------------  ------

Basic EPS
Income available to 
  common shareholders          $ 23,269,704    11,554,623  $ 2.01  $ 19,966,481    11,464,393  $ 1.74

Effect of Dilutive Securities
Stock options                             -       492,733   (0.08)            -       482,282   (0.07)
                               ------------  ------------  ------  ------------  ------------  ------

Diluted EPS
Income available to 
  common shareholders          $ 23,269,704    12,047,356  $ 1.93  $ 19,966,481    11,946,675  $ 1.67
                               ============  ============  ======  ============  ============  ======




Newly Issued Accounting Standards

In June 1997, the Financial Accounting Standards Board issued Statement of 
Financial Accounting Standards ("SFAS") No. 131, "Disclosures About 
Segments of an Enterprise and Related Information." SFAS No. 131 specifies 
revised guidelines for determining an entity's operating segments and the 
type and level of financial information to be disclosed. SFAS No. 131 is 
effective for annual financial statements issued for periods beginning 
after December 15, 1997, and accordingly, management has not determined 
the effect, if any, on the Company's financial statements for the three 
and nine months ended September 30, 1998.

As of January 1, 1998, the Company adopted SFAS No. 130, "Reporting 
Comprehensive Income" and has presented Condensed Consolidated Statements 
of Comprehensive Income for the three and nine month periods ended 
September 30, 1998 and 1997. The accompanying balance sheets include 
accumulated other comprehensive income amounts which consist entirely of 
foreign currency translation adjustments.

Certain prior year amounts have been reclassified to conform to the 1998 
presentation with no effect on net income as previously reported.


2.  Trade Accounts Receivable

Trade accounts receivable consist of the following:






                                                                               At
                                                At September 30,          December 31,
                                          ----------------------------
                                              1998            1997            1997
                                          ------------    ------------    ------------
                                                                 

Trade accounts receivable                 $ 39,858,760  $   38,189,407    $ 26,398,046
Allowance for doubtful accounts             (1,243,048)     (1,622,209)     (1,539,691)
Allowance for sales discounts                 (350,368)       (294,799)       (232,787)
                                          ------------    ------------    ------------

                                          $ 38,265,344    $ 36,272,399    $ 24,625,568
                                          ============    ============    ============




3.  Inventories

The components of inventories consist of the following:





                                                                               At
                                                At September 30,          December 31,
                                          ----------------------------
                                              1998            1997            1997
                                          ------------    ------------    ------------
                                                                 

Raw materials                             $ 16,941,620    $ 17,980,381    $ 17,882,930
In-process products                          5,308,232       6,092,749       5,384,709
Finished products                           29,449,278      30,269,163      31,715,306
                                          ------------    ------------    ------------

                                          $ 51,699,130    $ 54,342,293    $ 54,982,945
                                          ============    ============    ============




Approximately 89% of the Company's inventories are valued using the LIFO 
(last-in, first-out) method. Because inventory determination under the 
LIFO method is only made at the end of each year based on the inventory 
levels and costs at that time, interim LIFO determinations must 
necessarily be based on management's estimates of expected year-end 
inventory levels and costs. Since future estimates of inventory levels and 
costs are subject to change, interim financial results reflect the 
Company's most recent estimate of the effect of LIFO and are subject to 
adjustment based upon final year-end inventory amounts. At September 30, 
1998 and 1997, and December 31, 1997, the replacement value of LIFO 
inventories exceeded LIFO cost by approximately $438,000, $386,000 and 
$852,000, respectively.


4.  Net Property, Plant and Equipment

Net property, plant and equipment consists of the following:





                                                                               At
                                                At September 30,          December 31,
                                          ----------------------------
                                              1998            1997            1997
                                          ------------    ------------    ------------
                                                                 

Land                                      $  3,891,519  $    2,785,668    $  3,366,519
Buildings and site improvements             18,704,333      13,027,998      17,165,509
Leasehold improvements                       3,380,305       3,050,405       3,474,278
Machinery and equipment                     59,631,004      54,486,765      55,400,034
                                          ------------    ------------    ------------
                                            85,607,161      73,350,836      79,406,340
Less accumulated depreciation 
  and amortization                         (48,146,143)    (40,937,929)    (41,986,005)
                                          ------------    ------------    ------------
                                            37,461,018      32,412,907      37,420,335
Capital projects in progress                16,001,615       4,945,706       5,504,753
                                          ------------    ------------    ------------
                                          $ 53,462,633    $ 37,358,613    $ 42,925,088
                                          ============    ============    ============




5.  Debt

Outstanding debt at September 30, 1998 and 1997, and the available credit 
at September 30, 1998, consisted of the following:





                                           Available            Debt Outstanding
                                           Credit at            At September 30,
                                          September 30,   ----------------------------
                                              1998            1998            1997
                                          ------------    ------------    ------------
                                                                 

Revolving line of credit, interest 
  at bank's reference rate (at 
  September 30, 1998, the bank's 
  reference rate was 8.25%), expires 
  June 2000                               $ 12,667,237    $          -    $          -

Revolving term commitment, interest 
  at bank's prime rate (at September 
  30, 1998, the bank's prime rate was 
  8.25%), expires June 2000                  8,866,004               -               -

Revolving line of credit, interest rate 
  at the bank's base rate of interest 
  plus 2%, expires June 1999                   424,875               -               -

Revolving line of credit, interest rate 
  at the weighted average French 
  interbank rate of interest plus 1%, 
  expires February 1999                        178,603               -               -

Standby letter of credit facilities          1,466,760               -               -

Term loan, interest at LIBOR plus 1.375%
   (at October 1, 1998, the LIBOR plus 
   1.375% was 6.7188%), expires May 2008             -       3,000,000               -

Other notes payable and long-term debt               -          54,444          29,943
                                          ------------    ------------    ------------
                                            23,603,479       3,054,444          29,943
Less current portion                                 -         331,724          29,943
                                          ------------    ------------    ------------
                                          $ 23,603,479    $  2,722,720    $          -
                                                          ============    ============
Standby letters of credit issued 
  and outstanding                           (1,466,760) 
                                          ------------
                                          $ 22,136,719
                                          ============



The Company has three outstanding standby letters of credit. Two of these 
letters of credit, in the aggregate amount of $667,995, are used to 
support the Company's self-insured workers' compensation insurance 
requirements. The third, in the amount of $798,765, is used to guarantee 
performance on the Company's leased facility in the UK. In June 1998, the 
Company's subsidiary, Simpson Dura-Vent Company, Inc., borrowed $3,000,000 
to finance the construction of its new facility in Ceres, Mississippi. 
Other notes payable represent debt associated with foreign businesses 
acquired in March 1997.


6.  Commitments and Contingencies

Note 9 to the consolidated financial statements in the Company's 1997 
Annual Report provides information concerning commitments and 
contingencies. From time to time, the Company is involved in various legal 
proceedings and other matters arising in the normal course of business.


Item 2. Management's Discussion and Analysis of Financial Condition and 
Results of Operations.

Certain matters discussed below are forward-looking statements that 
involve risks and uncertainties, certain of which are discussed in this 
report and in other reports filed by the Company with the Securities and 
Exchange Commission. Actual results might differ materially from results 
suggested by any forward-looking statements in this report.

The following is a discussion and analysis of the consolidated financial 
condition and results of operations for the Company for the three and nine 
months ended September 30, 1998 and 1997. The following should be read in 
conjunction with the interim Condensed Consolidated Financial Statements 
and related Notes appearing elsewhere herein. 

Results of Operations for the Three Months Ended September 30, 1998, 
Compared with the Three Months Ended September 30, 1997

Net sales increased 12.2% in the third quarter of 1998 as compared to the 
third quarter of 1997. The increase reflected sales growth throughout the 
United States and abroad, particularly in California. Simpson Strong-Tie's 
third quarter sales increased 13.5% over the same quarter last year, while 
Simpson Dura-Vent's sales increased 7.1%. Homecenters and contractor 
distributors were the fastest growing connector sales channels. The growth 
rate of Simpson Strong-Tie's seismic and high wind and connectors for 
engineered wood products was strong. Sales of the Company's Anchoring 
Systems products increased. Simpson Dura-Vent sales of Direct-Vent products 
increased significantly and the growth rate in the sales of gas vent 
products was positive, while chimney and pellet stove products declined.

Income from operations increased 10.4% from $13,613,072 in the third 
quarter of 1997 to $15,029,961 in the third quarter of 1998. Gross margins 
decreased from 41.4% in the third quarter of 1997 to 39.1% in the third 
quarter of 1998 as a result of higher costs, with factory overhead costs 
associated with recently added capacity being the most significant item. 
Selling expenses increased 11.2% from $5,892,494 in the third quarter of 
1997 to $6,550,624 in the third quarter of 1998. The increase was 
primarily due to higher promotional expenses as well as higher costs 
related to an increase in the number of sales and marketing personnel. 
General and administrative expenses decreased 1.0% from $8,665,462 in the 
third quarter of 1997 to $8,584,612 in the third quarter of 1998. The 
effective tax rate decreased from 40.3% in the third quarter of 1997 to 
39.5% in the third quarter of 1998, primarily as a result of the expected 
realization of additional investment tax credits in 1998.


Results of Operations for the Nine Months Ended September 30, 1998, 
Compared with the Nine Months Ended September 30, 1997

Net sales increased 11.2% in the first nine months of 1998 as compared to 
the first nine months of 1997. The increase reflected sales growth 
throughout the United States, particularly in the Southeastern region of 
the country and in California. International sales also increased at an 
above average rate, a portion of which was related to the businesses 
purchased in March 1997. Simpson Strong-Tie's sales for the first nine 
months of 1998 increased 13.1% over the same period in the prior year, 
while Simpson Dura-Vent's sales increased 3.9%. Homecenters and contractor 
distributors were the fastest growing connector sales channels. The growth 
rate of Simpson Strong-Tie's seismic and high wind and connectors for 
engineered wood product sales was strong. Anchoring Systems products also 
contributed significantly to the increase in sales. Direct-Vent products 
led Simpson Dura-Vent's sales with a strong growth rate as compared to the 
same period in the prior year.

Income from operations increased 14.9% from $33,379,249 in the first nine 
months of 1997 to $38,344,250 in the first nine months of 1998. Gross 
margins decreased from 39.8% in the first nine months of 1997 to 39.1% in 
the first nine months of 1998. Selling, general and administrative 
expenses increased in the first nine months of 1998, but were lower as a 
percentage of sales. Selling expenses increased 4.8% from $17,467,520 in 
the first nine months of 1997 to $18,304,870 in the first nine months of 
1998. The increase was primarily due to higher expenses related to the 
increase in the number of sales and marketing personnel, offset partially 
by higher costs associated with acquiring additional homecenter business 
in 1997. General and administrative expenses increased 6.1% from 
$22,969,505 in the first nine months of 1997 to $24,365,243 in the first 
nine months of 1998. The increase was primarily due to increased cash 
profit sharing resulting from higher operating income. The effective tax 
rate decreased from 40.6% in the first nine months of 1997 to 40.2% in the 
first nine months of 1998.



Liquidity and Sources of Capital

As of September 30, 1998, working capital was $99.8 million as compared to 
$82.5 million at September 30, 1997, and $83.3 million at December 31, 
1997. The principal components of the increase in working capital from 
December 31, 1997, were increases in cash and cash equivalents of 
approximately $15.1 million and in the Company's trade accounts receivable 
totaling approximately $13.6 million, primarily due to higher sales levels 
and seasonal buying programs. Partially offsetting these increases were 
increases in certain liability accounts, including trade accounts payable, 
accrued cash profit sharing and commissions and income taxes payable. 
These accounts increased an aggregate of approximately $8.6 million as 
well as a decrease in inventory levels of approximately $3.3 million. The 
balance of the change in working capital was due to the fluctuation of 
various other asset and liability accounts. The working capital change 
combined with net income and noncash expenses, such as depreciation, 
amortization and the issuance of stock under the Company's stock bonus 
plan, totaling approximately $29.9 million, resulted in net cash provided 
by operating activities of approximately $28.4 million. As of September 
30, 1998, the Company had unused credit facilities available of 
approximately $22.1 million.

The Company used approximately $16.8 million in its investing activities, 
primarily to purchase the capital equipment and property needed to expand 
its capacity. The Company plans to continue this expansion throughout the 
remainder of the year and into 1999.

Financing activities provided the Company with approximately $3.5 million 
in cash. This resulted primarily from the issuance of $3.0 million in debt 
which the Company's subsidiary, Simpson Dura-Vent Company, Inc., used to 
finance the construction of its new facility in Ceres, Mississippi. The 
balance of the cash was generated by the issuance of stock upon the 
exercise of stock options by current and former employees.

The Company believes that cash generated by operations and borrowings 
available under its existing credit agreements, will be sufficient for the 
Company's working capital needs and planned capital expenditures through 
the remainder of 1998 and into 1999. Depending on the Company's future 
growth, it may become necessary to secure additional sources of financing.

Year 2000 Issue

The year 2000 issue is primarily the result of computer programs and 
computer controlled equipment using two digits rather than four to define 
the applicable year. Such software may recognize a date using "00" as the 
year 1900 rather than the year 2000. This could potentially result in 
system failures or miscalculations leading to disruptions in the Company's 
activities or those of its significant customers, suppliers and banks.

The Company does not produce or sell any computer components, software or 
electronic parts in its normal business environment, and therefore, does 
not believe that it has any material risk of product liability or 
obsolescence resulting from the year 2000 issue.

In 1998, the Company established a Year 2000 Committee (the "Committee") 
to evaluate the extent, if any, of its year 2000 and associated problems, 
to make any required changes and to establish contingency plans. The 
Company's computer systems are PC based with few interfaces to other 
internal systems. These systems use a date handling routine that the 
Company believes to be year 2000 compliant. The Company has conducted 
preliminary tests of its internal software which do not demonstrate a 
significant risk from the year 2000 issue. The Company plans additional 
tests of these systems to validate the preliminary test results. Should 
any year 2000 or associated problems be discovered, the Company intends to 
fix or replace any non-compliant internal software with code or software 
that is year 2000 compliant. The Company's current target is to identify 
and resolve any compliance issues in its important business information 
systems by early 1999.

The Company is also focusing on major customers, suppliers and equipment 
used in its operations to assess compliance. The Committee will continue 
to evaluate these areas of exposure and, where necessary, will develop 
contingency plans and alternative sources in order to avoid any 
interruptions in the Company's business. Nevertheless, the Company cannot 
give any assurance that there will not be a material adverse effect on the 
Company if third parties with whom the Company conducts business do not 
adequately address the year 2000 issue and, therefore, are unable to 
conduct their operations without interruption.


Costs related to the year 2000 issue are funded through operating cash 
flows. The Committee estimates that the costs of conversion is expected to 
be less than $100,000. The Company presently expects that the total cost 
of achieving year 2000 compliant systems will not be material to its 
financial condition, liquidity or results of operations.

Time and cost estimates are based on currently available information. 
Developments that could affect estimates include, but are not limited to, 
the availability and cost of trained personnel, the ability to locate and 
correct all relevant computer code and systems, and remediation success of 
the Company's customers, suppliers and banks.


PART II -- OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS.

From time to time, the Company is involved in various legal proceedings 
and other matters arising in the normal course of business.

ITEM 2. CHANGES IN SECURITIES.

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES.

None.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

None.

ITEM 5. OTHER INFORMATION. 

Alan R. McKay, an outside Director since the Company's initial public 
offering in May 1994, resigned from the Board of Directors (the "Board") 
in September 1998. His services will be missed as he provided the Board 
with the insights of a highly respected structural engineer. The search 
for a suitable replacement is underway.

If any shareholder should submit a proposal for a vote at the Company's 
Annual Meeting of Shareholders in 1999 and if the proponent does not 
request that the proposal be included in the Company's proxy materials, 
the proxies solicited by the Company's management will confer 
discretionary authority to vote for or against the proposal unless the 
Company receives notice of the proposal on or before February 28, 1999.


Item 6. Exhibits and Reports on Form 8-K.




      a.  Exhibits.

      EXHIBIT
        NO                              DESCRIPTION
      -------     ------------------------------------------------------
               

      10.1        Lease, dated May 26, 1998, between Minuk Developments 
                  Inc. and Simpson Strong-Tie Canada Limited.
      11          Statements re computation of earnings per share
      27          Financial Data Schedule, which is submitted 
                  electronically to the Securities and Exchange 
                  Commission for information only and not filed.

      b.          Reports on Form 8-K



No reports on Form 8-K were filed during the quarter for which this report 
is filed.



SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the 
registrant has duly caused this report to be signed on its behalf by the 
undersigned thereunto duly authorized.


                                           Simpson Manufacturing Co., Inc.
                                           -------------------------------
                                                    (Registrant)


DATE:  NOVEMBER 13, 1998              By:  /s/Stephen B. Lamson
       ------------------                  -------------------------------
                                                  Stephen B. Lamson
                                               Chief Financial Officer