Exhibit (12)

POTLATCH CORPORATION

Computation of Ratio of Earnings to Fixed Charges

(In thousands)

	2012		2011		2010		2009		2008
Income from continuing operations before income taxes	$	59,403	$	44,411	$	44,871	$	64,783	$	47,742
Add:
Interest expense	23,727		25,216		26,070		20,778		20,789
Interest portion of rental expense	1,024		822		651		631		749
Discount and debt expense amortization	1,974		2,817		1,836		1,214		649
Earnings available for fixed charges	86,128		73,266		73,428		87,406		69,929
Fixed charges:
Interest expense	23,727		25,216		26,070		20,778		20,789
Capitalized interest	—		—		—		—		—
Interest portion of rental expense	1,024		822		651		631		749
Discount and debt expense amortization	1,974		2,817		1,836		1,214		649
Total fixed charges	26,725		28,855		28,557		22,623		22,187
Ratio of earnings to fixed charges	3.2		2.5		2.6		3.9		3.2