Analysis
NAICS 423310 is the 2022 national industry for lumber, plywood, millwork, and wood panel merchant wholesalers, part of 42331 (Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers). Census lists 32 example activities under it in the official index.
County Business Patterns counts 7,048 US establishments in this code in 2023, employing 130,158 people at an average annual payroll of $80,037 per employee (69th percentile of national industries). 35% of the establishments have fewer than five employees, which is close to the national mix.
Its index entries, the activities Census uses to assign businesses to this code, include building board (e.g., fiber, flake, particle) merchant…, buildings, prefabricated wood, merchant wholesalers, cabinets, kitchen, built-in, merchant wholesalers and countertops, wood and wood fiber, merchant wholesalers, among 32 in all.
Census lists 3 related activities that belong elsewhere, most often in 423330, 423990 and 238. Businesses that do several things are classified by their primary activity, the one that generates the most value, so check those boundaries before settling on this code.
For example, merchant wholesale distribution of nonwood roofing and siding materials are classified in 423330 (Roofing, Siding, and Insulation Material Merchant Wholesalers) instead.
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, NAICS 2022 Manual.
Not this code if…
| The business mainly does | Use instead |
|---|---|
| Merchant wholesale distribution of nonwood roofing and siding materials | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers |
| Merchant wholesale distribution of timber and timber products, such as railroad ties, logs, firewood, and pulpwood | 423990 Other Miscellaneous Durable Goods Merchant Wholesalers |
| Installing doors and windows | 238 Specialty Trade Contractors |
Index entries (32)
- Building board (e.g., fiber, flake, particle) merchant wholesalers
- Buildings, prefabricated wood, merchant wholesalers
- Cabinets, kitchen, built-in, merchant wholesalers
- Countertops, wood and wood fiber, merchant wholesalers
- Doors and door frames merchant wholesalers
- Drywall board merchant wholesalers
- Fencing, wood, merchant wholesalers
- Fiberboard merchant wholesalers
- Flooring, wood, merchant wholesalers
- Kitchen cabinets, built-in, merchant wholesalers
- Laminates, wood, merchant wholesalers
- Lumber (e.g., dressed, finished, rough) merchant wholesalers
- Millwork merchant wholesalers
- Molding (e.g., sheet metal, wood) merchant wholesalers
- Paneling merchant wholesalers
- Particleboard merchant wholesalers
- Plywood merchant wholesalers
- Prefabricated buildings, wood, merchant wholesalers
- Railings, wood, merchant wholesalers
- Roofing materials, wood, merchant wholesalers
- Screens, window and door, merchant wholesalers
- Shingles, wood, merchant wholesalers
- Siding, wood, merchant wholesalers
- Stairs, wood, merchant wholesalers
- Structural assemblies, prefabricated wood, merchant wholesalers
- Veneer, wood, merchant wholesalers
- Wallboard merchant wholesalers
- Windows and window frames merchant wholesalers
- Wood fencing merchant wholesalers
- Wood flooring merchant wholesalers
- Wood shingles merchant wholesalers
- Wood siding merchant wholesalers