Yamadai Corporation wholesales and retails housing and construction materials in Japan. Its wood processing business includes computer cutting, preservative treatment for large buildings, artificial drying, and material making, and it supplies lumber, building materials, housing equipment, and plywood. The company is also involved in planting and cultivating cedar and cypress, in planning, construction, supervision, and sale and brokerage of residential and large wooden buildings, wooden houses, condominiums, and real estate, as well as ground surveys and real estate leasing. Incorporated in 1964, it is headquartered in Ishinomaki, Japan.