Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Three month ended		Year Ended December 31
	March 31, 2008		2007		2006		2005		2004		2003
Earnings:
Earnings (loss) before income taxes and net earnings in equity affiliates	$	154		1,212	$	928	$	860	$	918	$	714
Plus:
Fixed charges exclusive of capitalized interest		86		149		130		122		125		145
Amortization of capitalized interest		2		7		8		9		10		10
Adjustments for equity affiliates		—		20		16		19		5		2
Total	$	242	$	1,388	$	1,082	$	1,010	$	1,058	$	871
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense	$	66		93	$	83	$	81	$	90	$	107
Rentals – portion representative of interest		20		56		47		41		35		38
Fixed charges exclusive of capitalized interest		86		149		130		122		125		145
Capitalized interest		1		11		7		5		3		3
Total	$	87	$	160	$	137	$	127	$	128	$	148
Ratio of earnings to fixed charges		2.8		8.7		7.9		8.0		8.3		5.9

The financial information of all prior periods has been reclassified to reflect discontinued operations.