Analysis
NAICS 423390 is the 2022 national industry for other construction material merchant wholesalers, part of 42339 (Other Construction Material Merchant Wholesalers). Census lists 29 example activities under it in the official index.
County Business Patterns counts 3,756 US establishments in this code in 2023, employing 51,293 people at an average annual payroll of $76,928 per employee (64th percentile of national industries). 41% of the establishments have fewer than five employees, which is close to the national mix.
Census lists 6 related activities that belong elsewhere, most often in 423510, 423310, 423320 and 423330. 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.
Its index entries, the activities Census uses to assign businesses to this code, include architectural metalwork merchant wholesalers, awnings (except canvas) merchant wholesalers, bailey bridges merchant wholesalers and bins, storage, merchant wholesalers, among 29 in all.
For example, merchant wholesale distribution of products of the primary metals industries are classified in 423510 (Metal Service Centers and Other Metal Merchant Wholesalers) instead.
Between 2018 and 2023 the number of establishments grew 4% and employment rose 7%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.
Official definition
This industry comprises (1) establishments primarily engaged in the merchant wholesale distribution of manufactured homes (i.e., mobile homes) and/or prefabricated buildings and (2) establishments primarily engaged in the merchant wholesale distribution of construction materials (except lumber, plywood, millwork, wood panels, brick, stone, roofing, siding, electrical and wiring supplies, and insulation materials).
Illustrative Examples:
Flat glass merchant wholesalers Prefabricated buildings (except wood) merchant wholesalers Ornamental ironwork merchant wholesalers Fencing and fencing accessories (except wood) merchant wholesalers Plate glass merchant wholesalers Storage bins merchant wholesalers
Source: US Census Bureau, NAICS 2022 Manual.
Not this code if…
| The business mainly does | Use instead |
|---|---|
| Merchant wholesale distribution of products of the primary metals industries | 423510 Metal Service Centers and Other Metal Merchant Wholesalers |
| Merchant wholesale distribution of lumber; plywood; reconstituted wood fiber products; wood fencing; doors, windows, and their frames; wood roofing and wood siding; and other wood or metal millwork | 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers |
| Merchant wholesale distribution of stone, cement, lime, construction sand and gravel; brick; asphalt and concrete mixtures (except ready-mix concrete); and/or concrete, stone, and structural clay products | 423320 Brick, Stone, and Related Construction Material Merchant Wholesalers |
| Merchant wholesale distribution of nonwood roofing and nonwood siding and insulation materials | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers |
| Merchant wholesale distribution of electrical supplies and wiring supplies | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers |
| Selling ready-mix concrete | 327320 Ready-Mix Concrete Manufacturing |
Index entries (29)
- Architectural metalwork merchant wholesalers
- Awnings (except canvas) merchant wholesalers
- Bailey bridges merchant wholesalers
- Bins, storage, merchant wholesalers
- Building materials, fiberglass (except insulation, roofing, siding), merchant wholesalers
- Building paper merchant wholesalers
- Buildings, prefabricated nonwood, merchant wholesalers
- Ceiling tile merchant wholesalers
- Countertops (except wood, wood fiber, stone, concrete) merchant wholesalers
- Culvert pipe, metal and plastics, merchant wholesalers
- Fencing and fencing accessories (except wood) merchant wholesalers
- Fiberglass building materials (except insulation, roofing, siding) merchant wholesalers
- Flat glass merchant wholesalers
- Gate and fence hardware merchant wholesalers
- Glass, block and brick, merchant wholesalers
- Glass, plate, merchant wholesalers
- Gypsum building products merchant wholesalers
- Iron and steel architectural shapes merchant wholesalers
- Manufactured (i.e., mobile) homes merchant wholesalers
- Mastics, construction, merchant wholesalers
- Metal buildings merchant wholesalers
- Ornamental ironwork merchant wholesalers
- Paper, building, merchant wholesalers
- Plate glass merchant wholesalers
- Prefabricated buildings (except wood) merchant wholesalers
- Septic tanks (except concrete) merchant wholesalers
- Silt fence and other fabrics (e.g., for erosion control) merchant wholesalers
- Storage bins merchant wholesalers
- Structural assemblies, prefabricated (except wood), merchant wholesalers