C.S. Lumber Co., Inc engages in pre-cut wood processing, construction contracting, and real estate leasing businesses in Japan. The company operates through Pre-cut business, Construction contract business segments It manufactures and sells pre-cut products; undertakes construction of wooden detached houses and general wooden buildings; rents and manages real estate properties; and sells real estate properties. C.S. Lumber Co., Inc was incorporated in 1983 and is headquartered in Chiba, Japan.