Exhibit 12

Weyerhaeuser Company and Subsidiaries

Computation of Ratios of Earnings to Fixed Charges

(Dollar amounts in millions)

	2007			2006			2005		2004			2003
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	606		$	2,080		$	2,166	$	2,723		$	1,425
Add: interest portion of rental expense		58			57			53		54			53
Deduct: undistributed earnings of equity affiliates and minority interest in income of subsidiaries		163			(49	)		9		(36	)		9
Available earnings	$	827		$	2,088		$	2,228	$	2,741		$	1,487
Fixed charges:
Interest expense incurred:
Weyerhaeuser Company and subsidiaries excluding Weyerhaeuser Real Estate Company and other related subsidiaries		566			508			625		727			705
Weyerhaeuser Real Estate Company and other related subsidiaries		64			67			53		57			53
Subtotal		630			575			678		784			758
Less: intercompany interest		(7	)		(10	)		3		—			—
Total interest expense incurred		623			565			681		784			758
Amortization of debt expense		8			11			18		15			14
Interest portion of rental expense		58			57			53		54			53
Total fixed charges	$	689		$	633		$	752	$	853		$	825
Ratio of earnings to fixed charges		1.20			3.30			2.96		3.21			1.80

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)

	2007			2006			2005			2004			2003
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	556		$	2,014		$	2,094		$	2,631		$	1,345
Add: interest portion of rental expense		48			50			46			49			48
Deduct: undistributed earnings of equity affiliates and minority interest in income of subsidiaries		154			(6	)		29			(6	)		2
Deduct: undistributed earnings before income taxes of Weyerhaeuser Real Estate Company and other related subsidiaries		(204	)		(723	)		(734	)		(610	)		(392	)
Add: dividends paid to Weyerhaeuser		—			—			—			—			115
Available earnings	$	554		$	1,335		$	1,435		$	2,064		$	1,118
Fixed charges:
Interest expense incurred		566			508			625			727			705
Amortization of debt expense		8			11			18			15			14
Interest portion of rental expense		48			50			46			49			48
Total fixed charges	$	622		$	569		$	689		$	791		$	767
Ratio of earnings to fixed charges		—			2.35			2.08			2.61			1.46
Coverage deficiency	$	(68	)	$	—		$	—		$	—		$	—