Weyerhaeuser Co. engages in the manufacture, distribution, and sale of forest products. It operates through the following segments: Timberlands, Real Estate, Energy, and Natural Resources (Real Estate and ENR), and Wood Products. The Timberlands segment manages private commercial forestland worldwide and engages in growing and harvesting trees for lumber, building, pulp, paper, and other wood products. The Real Estate and ENR segment delivers premiums to timber value by identifying and monetizing higher and better use of lands and capturing the full value of surface and subsurface assets. The Wood Products segment delivers lumber, structural panels, engineered wood products and complementary building products for residential, multi-family, industrial, and light commercial applications. The company was founded by Frederick T. Weyerhaeuser on January 18, 1900 and is headquartered in Seattle, WA.