This U.S. Census Bureau NAICS-based industry comprises establishments primarily engaged in buying or selling lumber, plywood, millwork and wood paneling; brick, stone, and related construction materials; roofing, siding, and insulation material; and/or other construction materials on a commission, brokerage, or agency basis for others through a sales force rather than through electronic means such as the Internet.

Cross-References. Establishments primarily engaged in--

• Merchant wholesale distribution of lumber, plywood, millwork and wood paneling; brick, stone, and related construction materials; roofing, siding, and insulation material; and/or other construction materials--are classified in Industry Group 4233, Lumber and Other Construction Materials Merchant Wholesalers; and
• Bringing together buyers and sellers of goods using the Internet or other electronic means and generally receiving a commission or fee for the service--are classified in Indust ry 425110, Business to Business Electronic Markets.