TRIMAS EXHIBIT 12 COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS (DOLLARS IN THOUSANDS) Three Months Three Months ended ended 3/30/2003 3/31/2002 --------- --------- EARNINGS BEFORE INCOME TAXES AND FIXED CHARGES: Income (loss) from continuing operations before income taxes ................... $(12,100) $ 5,460 Deduct equity in undistributed earnings of less-than-fifty-percent owned companies ............................................................. -- -- Fixed charges .................................................................. 16,950 17,886 Deduct capitalized interest .................................................... -- (26) Depreciation of fixed charges .................................................. 20 3 Estimated interest factor for rentals .......................................... -- -- --------- --------- Earnings before income taxes and fixed charges ................................. $ 4,870 $23,323 ========= ========= FIXED CHARGES: Interest on indebtedness, net .................................................. 16,040 17,400 Capitalized interest ........................................................... -- 26 Estimated interest factor for rentals .......................................... 910 460 --------- --------- Total fixed charges ........................................................ 16,950 $17,886 --------- --------- Total fixed charges ............................................................$ 16,950 $17,886 ========= ========= RATIO OF EARNINGS TO FIXED CHARGES .................................................. 0.3 1.3 ========= ========= For the Years Ended December 31, ------------------------------------------------------------------- One Eleven Month Months ended ended 2002 2001 12/31/00 11/28/00 1999 1998(1) ---- ---- -------- -------- ---- ------- EARNINGS (LOSS) BEFORE INCOME TAXES AND FIXED CHARGES: Income (loss) from continuing operations before income taxes ..............$ 3,120 $(9,450) $(5,250) $42,190 $65,000 $49,910 Deduct equity in undistributed earnings of less-than-fifty-percent owned companies ...... -- -- -- -- -- -- Fixed charges ................................... 62,360 74,934 5,140 57,545 57,820 60,950 Deduct capitalized interest ..................... (30) (114) -- (315) (700) -- Depreciation of fixed charges ................... 20 6 -- 141 55 -- Estimated interest factor for rentals ........... -- -- -- -- -- -- ------- ------- ------- ------- -------- -------- Earnings (loss) before income taxes and fixed charges ........................... 65,470 $65,376 $ (110) $99,561 $122,175 $110,860 ======= ======= ======= ======= ======== ======== FIXED CHARGES: Interest on indebtedness, net ................... 60,010 73,130 5,000 55,390 55,380 59,350 Capitalized interest ............................ 30 114 -- 315 700 -- Estimated interest factor for rentals ........... 2,320 1,690 140 1,840 1,740 1,600 ------- ------- ------- ------- -------- -------- Total fixed charges ...................... 62,360 74,934 5,140 57,545 57,820 60,950 ------- ------- ------- ------- -------- -------- Total fixed charges ............................. $62,360 $74,934 $ 5,140 $57,545 $ 57,820 $ 60,950 ======= ======= ======= ======= ======== ======== RATIO OF EARNINGS TO FIXED CHARGES ................... 1.0 0.9(2) (0.02)(2) 1.7 2.1 1.8 ======= ======= ======= ======= ======== ======== Notes (1) Metaldyne acquired TriMas in January 1998. Financial results for the 21 days prior to Metaldyne's acquisition have not been included because the results were determined on a different accounting basis. (2) For the period ended December 31, 2000, and year ended December 31, 2001, additional earnings of $5.3 million and $9.6 million, respectively, would have been required to make the ratio 1.0x.