EXHIBIT 12
MASCO CORPORATION AND CONSOLIDATED SUBSIDIARIES
COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES
AND PREFERRED STOCK DIVIDENDS
<Table>
<Caption>
(DOLLARS IN MILLIONS)
YEAR ENDED DECEMBER 31
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2005 2004 2003 2002 2001
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EARNINGS BEFORE INCOME TAXES AND FIXED CHARGES:
Income from continuing operations before income
taxes and cumulative effect of accounting
change, net.................................. $1,412 $1,542 $1,247 $ 933 $256
(Deduct) add equity in undistributed (earnings)
loss of fifty-percent-or-less-owned
companies.................................... (1) (1) - (10) (1)
Add interest on indebtedness, net.............. 246 214 252 226 230
Add amortization of debt expense............... 6 6 13 13 10
Add estimated interest factor for rentals...... 40 34 31 24 21
------ ------ ------ ------ ----
Earnings before income taxes, cumulative effect
of accounting change, net, and fixed
charges...................................... $1,703 $1,795 $1,543 $1,186 $516
====== ====== ====== ====== ====
FIXED CHARGES:
Interest on indebtedness....................... $ 244 $ 214 $ 253 $ 225 $234
Amortization of debt expense................... 6 6 13 13 10
Estimated interest factor for rentals.......... 40 34 31 24 21
------ ------ ------ ------ ----
Total fixed charges.......................... $ 290 $ 254 $ 297 $ 262 $265
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PREFERRED STOCK DIVIDENDS (A)....................... $ - $ 8 $ 16 $ 14 $ 7
------ ------ ------ ------ ----
Combined fixed charges and preferred stock
dividends.................................... $ 290 $ 262 $ 313 $ 276 $272
====== ====== ====== ====== ====
RATIO OF EARNINGS TO FIXED CHARGES.................. 5.9 7.1 5.2 4.5 1.9
====== ====== ====== ====== ====
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND
PREFERRED STOCK DIVIDENDS (B)(C).................. 5.9 6.9 4.9 4.3 1.9
====== ====== ====== ====== ====
</Table>
(a) Represents the amount of income before provision for income taxes required
to meet the preferred stock dividend requirements of the Company.
(b) Excluding the 2005 pre-tax income of $6 million related to the Behr
litigation accrual, the non-cash, pre-tax goodwill impairment charge of $69
million and the pre-tax impairment charge of $45 million relating to
financial investments, 2004 pre-tax income of $30 million related to the
Behr litigation accrual, the non-cash, pre-tax goodwill impairment charge
of $112 million, and the pre-tax impairment charge of $21 million related
to a marketable security, the 2003 pre-tax income for litigation settlement
of $72 million and the non-cash, pre-tax goodwill impairment charge of $53
million, the 2002 pre-tax charge for litigation settlement, net, of $147
million, and the 2001 non-cash, pre-tax charge of $530 million, the Ratio
of Earnings to Combined Fixed Charges and Preferred Stock Dividends would
be 6.2, 7.2, 4.9, 4.8 and 3.8 for the years 2005, 2004, 2003, 2002 and
2001, respectively.
(c) The year 2001 includes goodwill amortization expense.