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 & ENR); and Wood Products. The Timberlands segment manages private commercial forestland worldwide, which engages in growing and harvesting trees for lumber, building, pulp, paper and other wood products. The Real Estate & ENR segment deliver premiums to timber value by identifying and monetizing higher and better use 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 Weyerhaeuser in January 1900 and is headquartered in Seattle, WA.