Exhibit 12

WEYERHAEUSER COMPANY AND SUBSIDIARIES

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

(Dollar amounts in millions)
	2006			2005		2004			2003		2002
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	1,457		$	1,670	$	2,745		$	1,356	$	1,191
Add: interest portion of rental expense		63			59		60			60		54
Deduct: undistributed earnings of equity affiliates		(49	)		10		(38	)		9		(20	)
Available earnings	$	1,471		$	1,739	$	2,767		$	1,425	$	1,225
Fixed charges:
Interest expense incurred:
Weyerhaeuser Company and subsidiaries excluding Weyerhaeuser Real Estate Company and other related subsidiaries	$	604		$	721	$	823		$	801	$	797
Weyerhaeuser Real Estate Company and other related subsidiaries		67			53		57			53		53
Subtotal		671			774		880			854		850
Less: intercompany interest		(10	)		3		—			—		(1	)
Total interest expense incurred		661			777		880			854		849
Amortization of debt expense		11			18		15			14		24
Interest portion of rental expense		63			59		60			60		54
Total fixed charges	$	735		$	854	$	955		$	928	$	927
Ratio of earnings to fixed charges		2.00			2.04		2.90			1.54		1.32

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)
	2006			2005			2004			2003			2002
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	1,392		$	1,599		$	2,653		$	1,276		$	1,118
Add: interest portion of rental expense		55			52			55			55			51
Deduct: undistributed earnings of equity affiliates		(6	)		30			(8	)		2			(4	)
Deduct: undistributed earnings before income taxes of Weyerhaeuser Real Estate Company and other related subsidiaries		(723	)		(734	)		(610	)		(277	)		(166	)
Available earnings	$	718		$	947		$	2,090		$	1,056		$	999
Fixed charges:
Interest expense incurred	$	604		$	721		$	823		$	801		$	797
Amortization of debt expense		11			18			15			14			24
Interest portion of rental expense		55			52			55			55			51
Total fixed charges	$	670		$	791		$	893		$	870		$	872
Ratio of earnings to fixed charges		1.07			1.20			2.34			1.21			1.15