Exhibit 12

WEYERHAEUSER COMPANY AND SUBSIDIARIES

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

DOLLAR AMOUNTS IN MILLIONS
	Year Ended December 31, 2009			2008			2007			2006			2005
Available earnings (loss):
Earnings (loss) from continuing operations before interest expense, amortization of debt expense and income taxes	$	(306	)	$	(2,298	)	$	73		$	1,742		$	2,121
Add: interest portion of rental expense		42			43			42			40			38
Deduct: undistributed earnings of equity affiliates and minority interest in income of subsidiaries		21			199			199			(39	)		10
Available earnings (loss)	$	(243	)	$	(2,056	)	$	314		$	1,743		$	2,169
Fixed charges:
Interest expense incurred:
Weyerhaeuser Company and subsidiaries excluding Weyerhaeuser Real Estate Company and other related subsidiaries	$	457		$	466		$	564		$	506		$	624
Weyerhaeuser Real Estate Company and other related subsidiaries		35			60			65			67			53
Subtotal		492			526			629			573			677
Less: intercompany interest		(5	)		(15	)		(8	)		(12	)		2
Total interest expense incurred		487			511			621			561			679
Amortization of debt expense		7			7			8			11			18
Interest portion of rental expense		42			43			42			40			38
Total fixed charges	$	536		$	561		$	671		$	612		$	735
Ratio of earnings to fixed charges											2.85			2.95
Coverage deficiency	$	779		$	2,617		$	357		$	—		$	—

WEYERHAEUSER COMPANY WITH ITS WEYERHAEUSER REAL ESTATE COMPANY AND OTHER RELATED SUBSIDIARIES ACCOUNTED FOR ON THE EQUITY METHOD, BUT EXCLUDING THE UNDISTRIBUTED EARNINGS OF THOSE SUBSIDIARIES

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

DOLLAR AMOUNTS IN MILLIONS
	Year Ended December 31, 2009			2008			2007			2006			2005
Available earnings (loss):
Earnings (loss) from continuing operations before interest expense, amortization of debt expense and income taxes	$	(379	)	$	(2,347	)	$	16		$	1,668		$	2,052
Add: interest portion of rental expense		35			34			32			33			32
Deduct: undistributed earnings of equity affiliates and minority interest in income of subsidiaries		17			41			173			6			39
Add (deduct): undistributed earnings (losses) before income taxes of Weyerhaeuser Real Estate Company and other related subsidiaries		303			1,422			(150	)		(711	)		(743	)
Add: dividends paid to Weyerhaeuser		—			—			—			—			—
Available earnings (loss)	$	(24	)	$	(850	)	$	71		$	996		$	1,380
Fixed charges:
Interest expense incurred	$	457		$	466		$	564		$	506		$	624
Amortization of debt expense		7			7			8			11			18
Interest portion of rental expense		35			34			32			33			32
Total fixed charges	$	499		$	507		$	604		$	550		$	674
Ratio of earnings to fixed charges											1.81			2.05
Coverage deficiency	$	523		$	1,357		$	533		$	—		$	—