EXHIBIT 12 GEORGIA GULF CORPORATION RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) 1995 1996 1997 1998 1999 -------- -------- -------- -------- -------- EARNINGS COMPUTATION Pretax income from continuing operations.............................. $243,541 $101,127 $ 99,836 $ 90,172 $ 67,969 Fixed charges............................. 30,435 29,594 33,399 42,983 45,614 Amortization of capitalized interest...... 267 368 819 1,050 1,035 Interest capitalized...................... (1,602) (4,826) (2,802) (667) (948) -------- -------- -------- -------- -------- Earnings for purposes of computation...... $272,641 $126,263 $131,252 $133,538 $113,670 ======== ======== ======== ======== ======== FIXED CHARGES COMPUTATION Interest expensed and capitalized......... $ 26,296 $ 25,219 $ 27,047 $ 31,006 $ 35,251 Amortized debt issuance costs............. 420 440 448 527 675 Estimate of interest within rental expense................................. 3,719 3,935 5,904 11,450 9,688 -------- -------- -------- -------- -------- Fixed charges for purpose of computation............................. $ 30,435 $ 29,594 $ 33,399 $ 42,983 $ 45,614 ======== ======== ======== ======== ======== Ratio of earnings to fixed charges........ 9.0x 4.3x 3.9x 3.1x 2.5x ======== ======== ======== ======== ========