Weyerhaeuser Company (NYSE: WY) announced today the applicable reference yield and Full Tender Offer Consideration for each series of Securities to be purchased pursuant to its previously announced Any and All Offers. The reference yield was determined today at 2:00 p.m. New York City time.

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The Full Tender Offer Consideration for the Securities subject to the Any and All Offers is based on the applicable reference yield plus a fixed spread as set forth in the table below. All payments for Securities purchased in the Any and All Offers will include accrued and unpaid interest on the principal amount of Securities tendered up to, but not including, the Settlement Date for the Offers, which is currently expected to be May 17, 2007.

  Offer for Securities Listed Below: Any and All Offers

  Title                  Reference   Fixed      Full Tender      Accrued
  of                     Yield       Spread     Offer            Interest
  Security                           (basis     Consideration    per $1,000
                                     points)    per $1,000       Principal
                                                Principal        Amount of
                                                Amount of        Securities
                                                Securities

  7.25% Debentures
   due July 1, 2013      4.693%      108        $1,075.18        $27.39
  7.00% Debentures
   due February 1, 2018  4.693%      152        $1,060.74        $20.61
  7.125% Debentures
   due July 15, 2023     4.878%      200        $1,023.74        $24.15
  7.35% Debentures
   due July 1, 2026      4.878%      205        $1,044.23        $27.77

The Any and All Offers are scheduled to expire at 5:00 p.m., New York City time, on May 16, 2007, unless extended.

The terms and conditions of the Any and All Offers, including the conditions to Weyerhaeuser's obligation to accept any Securities tendered and to pay the applicable Full Tender Offer Consideration, plus accrued and unpaid interest, are set forth in the Offer to Purchase dated May 9, 2007.

J.P. Morgan Securities Inc. and Banc of America Securities LLC are the dealer managers for the offers. Morgan Stanley & Co. Inc. and Citigroup Global Markets, Inc. are the co-dealer managers for the offers. Global Bondholder Services Corporation is the depositary and information agent. This news release is neither an offer to purchase nor a solicitation of an offer to sell the securities. The offers are made only by the Offer to Purchase, and the information in this news release is qualified by reference to the Offer to Purchase. Persons with questions regarding the offers should contact J.P. Morgan Securities Inc. toll free at (866) 834-4666 or collect at (212) 834- 4077, Attn. Liability Management Group or Banc of America Securities LLC toll free at (866) 475-9886 or collect at (704) 388-4603, Attn. Liability Management Group. Requests for documents should be directed to Global Bondholder Services Corporation toll free at (866) 804-2200 or collect at (212) 430-3774.

Weyerhaeuser Company, one of the world's largest forest products companies, was incorporated in 1900. In 2006, sales were $21.9 billion. It has offices or operations in 18 countries, with customers worldwide. Weyerhaeuser is principally engaged in the growing and harvesting of timber; the manufacture, distribution and sale of forest products; and real estate construction, development and related activities. Additional information about Weyerhaeuser's businesses, products and practices is available at www.weyerhaeuser.com.

  For more information contact:

  Media - Bruce Amundson (253) 924-3047
  Analysts - Kathryn McAuley (253) 924-2058

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SOURCE: Weyerhaeuser Company

CONTACT: Media, Bruce Amundson, +1-253-924-3047, or Analysts, Kathryn
McAuley, +1-253-924-2058, both of Weyerhaeuser Company

Web site: http://www.weyerhaeuser.com/