Weyerhaeuser Company (NYSE: WY) today announced that two oriented strand board mills in Canada and one in West Virginia will implement a reduced operating posture due to weak demand, beginning first week of March. This reduction will take 500 million to 600 million square feet of oriented strand board out of Weyerhaeuser's system on an annual basis.

  (Logo: http://www.newscom.com/cgi-bin/prnh/20040116/WYLOGO-a
         http://www.newscom.com/cgi-bin/prnh/20040116/WYLOGO-b )

"Despite the best efforts of our mill employees, we cannot avoid reducing supply from these mills," said Phil Dennett, vice president of iLevel Strand Technologies. "We're taking this action to balance our production with market demand."

Dennett said Weyerhaeuser is monitoring customer demand closely and will adjust its operating plans accordingly.

Mills affected by today's announcement are in Drayton Valley, Alberta; Hudson Bay, Saskatchewan; and Sutton, West Virginia. In addition, the company previously announced curtailment at its Miramichi, New Brunswick OSB facility at the end of last year.

Weyerhaeuser is one of North America's largest producers of oriented strand board, with the capacity to produce 4.3 billion square feet a year.

Weyerhaeuser Company, one of the world's largest integrated 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 http://www.weyerhaeuser.com/ .

  For more information contact:

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

Photo: http://www.newscom.com/cgi-bin/prnh/20040116/WYLOGO-a
http://www.newscom.com/cgi-bin/prnh/20040116/WYLOGO-b
AP Archive: http://photoarchive.ap.org/
PRN Photo Desk photodesk@prnewswire.com

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/