Fifteen partners and 900,000 acres (1,400 sq mi; 3,600 km2) of Washington timberland were involved in the founding,[6] and the land was purchased from James J. Hill of the Great Northern Railway.

Weyerhaeuser's pulp mill in Longview, which began production in 1931, sustained the company financially during the Great Depression.

It called for the planting of seedlings within one year of a harvest, soil fertilization, thinning, rehabilitation of brushlands, and, eventually, genetic improvement of trees.

In March 2008, Weyerhaeuser Company announced the sale of its containerboard packaging and recycling business to International Paper for $6 billion in cash, subject to post closing adjustments.

[14] The company also announced its intention to sell its corporate headquarters in Federal Way and relocate to Seattle's Pioneer Square in 2016.

[16] On November 8, 2015, it was announced that Weyerhaeuser would buy Plum Creek Timber for $8.4 billion, forming the largest private owner of timberland in the United States.

The Weyerhaeuser board of directors consists of: Mark Emmert, Sara Grootwassink Lewis, Rick Holley, Deidra "Dee" Merriwether, Al Monaco, Nicole Piasecki, Marc Racicot, Lawrence Selzer, D. Michael Steuert, Devin Stockfish, Kim Williams and Charles Williamson.