EXHIBIT 12 PENHALL INTERNATIONAL CORP AND SUBSIDIARIES RATIO OF EARNINGS TO FIXED CHARGES FISCAL YEAR ENDED JUNE 30, ------------------------------------------------------------- 1998 1999 2000 2001 2002 -------- -------- -------- -------- -------- (DOLLARS IN THOUSANDS) Earnings before income taxes........... $ 5,232 $ (7,337) $ 10,326 $ 9,159 $ (2,473) Fixed charges - interest expense(1).... 1,204 14,580 15,920 15,624 14,747 -------- -------- -------- -------- -------- $ 6,436 $ 7,243 $ 26,246 $ 24,783 $ 12,274 ======== ======== ======== ======== ======== Ratio of earnings to fixed charges..... 5.3 to 1 .5 to 1 1.6 to 1 1.6 to 1 .8 to 1 Coverage deficiency ................... $ -- $ 7,337 $ -- $ -- $ 2,473 ======== ======== ======== ======== ======== - ------------ (1) Fixed charges - interest expense includes a component for interest computed on rent expense that approximates 30% of the total rent expense for each period presented.