Lumber, Plywood, Millwork, & Wood Panel Merchant Wholesalers
Key Figures
Figures are published for NAICS 42331 directly.
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Official definition
This industry comprises establishments primarily engaged in the merchant wholesale distribution of lumber; plywood; reconstituted wood fiber products; wood fencing; doors and windows and their frames (all materials); wood roofing and siding; and/or other wood or metal millwork.
Source: US Census Bureau, 2017 NAICS Definitions. Public domain. Census publishes this definition under NAICS 423310, the only detailed industry in this group.
Which code does this activity belong in?
Lumber, plywood, millwork, and wood panel merchant wholesalers distribute wood-based building materials and their components, including lumber, reconstituted wood fiber products, fencing, and doors and windows in all materials. Roofing, siding, and insulation material merchant wholesalers are classified separately; while this code covers wood roofing and siding when distributed alongside other wood products by lumber wholesalers, those materials distributed primarily as specialty roofing and siding products belong in Roofing, Siding, and Insulation Material Merchant Wholesalers. Brick, stone, and related construction material merchant wholesalers handle masonry and stone products rather than wood and millwork items.
Written for NAICS 423310, the only detailed industry in this group.