2022 NAICS industry group in sector 42 Wholesale Trade
4233 Lumber and Other Construction Materials Merchant Wholesalers
NAICS 4233 is the US industry code for lumber and other construction materials merchant wholesalers. It covers establishments primarily engaged in the merchant wholesale distribution of lumber, plywood, millwork, and wood panels; brick, stone, and related construction materials; roofing, siding, and insulation materials; and other construction materials, including manufactured homes (i.e., mobile homes) and/or prefabricated buildings.
Official definition
This industry group comprises establishments primarily engaged in the merchant wholesale distribution of lumber, plywood, millwork, and wood panels; brick, stone, and related construction materials; roofing, siding, and insulation materials; and other construction materials, including manufactured homes (i.e., mobile homes) and/or prefabricated buildings.
Codes in 4233
Data last changed November 14, 2026. How this page is built.