EXHIBIT 12

Weyerhaeuser Company and Subsidiaries

Computation of Ratios of Earnings to Fixed Charges

For the thirteen-week periods ended April 1, 2007 and March 26, 2006

(Dollar amounts in millions)

	THIRTEEN-WEEKS ENDED
	APRIL 1, 2007			MARCH 26, 2006
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	93		$	400
Add: interest portion of rental expense		15			15
Deduct: undistributed earnings of equity affiliates		(13	)		(16	)
Available earnings	$	95		$	399
Fixed charges:
Interest expense incurred:
Weyerhaeuser Company and subsidiaries, excluding Weyerhaeuser Real Estate Company and other related subsidiaries		117			115
Weyerhaeuser Real Estate Company and other related subsidiaries		13			14
Subtotal		130			129
Less: intercompany interest		(1	)		—
Total interest expense incurred		129			129
Amortization of debt expense		3			3
Interest portion of rental expense		15			15
Total fixed charges	$	147		$	147
Ratio of earnings to fixed charges		—			2.71
Coverage deficiency	$	(52	)	$	—

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

For the thirteen-week periods ended April 1, 2007 and March 26, 2006

(Dollar amounts in thousands)

	THIRTEEN-WEEKS ENDED
	APRIL 1, 2007			MARCH 26, 2006
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	84		$	388
Add: interest portion of rental expense		13			13
Deduct: undistributed earnings of equity affiliates		2			(1	)
Deduct: undistributed earnings before income taxes of Weyerhaeuser Real Estate Company and other related subsidiaries		(57	)		(171	)
Available earnings	$	42		$	229
Fixed charges:
Interest expense incurred		117			115
Amortization of debt expense		3			3
Interest portion of rental expense		13			13
Total fixed charges	$	133		$	131
Ratio of earnings to fixed charges		—			1.75
Coverage deficiency	$	(91	)	$	—