Doman Building Materials Group Ltd operates through its wholly owned subsidiaries, producing and treating lumber and providing other value-add services, as well as distributing various building materials across Canada and in the United States. The company is a national distributor of building materials and related products in Canada, operating multiple divisions with treating plants, planing and specialty facilities, and distribution centers across various cities in Canada and the United States. Geographically, it derives the majority of revenue from the United States.