Weyerhaeuser Company is a timberland and forest products company that manages extensive timberlands in the United States and Canada and operates as a real estate investment trust. Its core business centers on growing, harvesting, and replanting trees on a sustainable cycle, while also supplying logs and other timber products to domestic and export markets. The company manufactures a broad range of wood products, including lumber, oriented strand board, plywood, and engineered wood products used in residential, commercial, and industrial construction. Weyerhaeuser also participates in land-based activities through real estate, energy, and natural resource operations that help monetize and steward its acreage. Headquartered in Seattle, Washington, Weyerhaeuser plays a significant role in the forest products market by linking timberlands, manufacturing, and land management within one integrated business model.