Weyerhaeuser to Release First Quarter Earnings on May 5

FEDERAL WAY, Wash., April 13, 2009—Weyerhaeuser Company (NYSE: WY) will release first quarter 2009 results on May 5 before the market opens. The company will hold a live conference call at 7 a.m. Pacific (10 a.m. Eastern) on May 5 to discuss first quarter results.

To access the conference call from within North America, dial 1‑800-240-4186 at least 15 minutes prior to the call. Those calling from outside North America should dial 1‑303‑262-2053. Replays will be available for one week at 1‑800-405-2236 (access code – 11130409#) from within North America and at 1-303-590-3000 (access code – 11130409#) from outside North America.

The call is being webcast through Weyerhaeuser’s Internet site athttp://investor.weyerhaeuser.comby clicking on the “Q1 2009 Earnings Conference Call” link.

The webcast is available through the Thomson StreetEvents Network to both institutional and individual investors. Individual investors can listen to the call athttp://www.fulldisclosure.com, Thomson’s individual investor portal, powered by StreetEvents. Institutional investors can access the call via Thomson’s password-protected site, StreetEvents (http://www.streetevents.com).