North American Industry Classification System (NAICS) 1997

• 41 - Wholesale Trade
• 416 - Building Material and Supplies Wholesaler-Distributors
• 4163 - Lumber, Millwork, Hardware and Other Building Supplies Wholesaler-Distributors

41631 - General-Line Building Supplies Wholesaler-Distributors

This industry comprises establishments primarily engaged in wholesaling a broad range of building supplies, such as lumber, hardware, plumbing and electrical supplies, paint, glass and other construction supplies.