423390 - Other Construction Material Merchant Wholesalers
When it comes to the construction industry’s supply chain, the role of merchant wholesalers is crucial. Among these, NAICS code 423390 stands out as the classification for Other Construction Material Merchant Wholesalers—a diverse and essential segment in wholesale trade. Whether you're a contractor sourcing specialty materials or a business exploring government contracting opportunities, understanding this NAICS code can enhance your industry insight and bidding success.
What is NAICS Code 423390?
NAICS 423390 refers to establishments primarily engaged in the wholesale distribution of construction materials that are not classified under other specific categories. This means businesses under this code supply a variety of specialized construction-related products that don’t fit neatly into other merchant wholesaler classifications.
Sector Overview: Wholesale Trade and Specialized Construction Supplies
Sector: Wholesale Trade
Businesses classified under NAICS 423390 are part of the broader Wholesale Trade sector, focusing specifically on non-specific or miscellaneous construction materials. These wholesalers serve a variety of construction-related customers including:
- Contractors
- Builders
- Construction firms
- Industrial clients
Typical Business Activities
Companies under this code typically engage in:
- Supplying architectural metalwork
- Distributing building materials like fiberglass, gypsum products, and prefabricated nonwood buildings
- Offering items such as ceiling tiles, culvert pipes, and ornamental ironwork
- Wholesale of storage bins and structural assemblies
- Providing miscellaneous construction products like awnings (except canvas) and silt fences
Size Standards for NAICS 423390
For small business eligibility under NAICS 423390, the SBA (Small Business Administration) size standard is typically:
- Maximum of 100 employees
This standard helps define which businesses qualify for small business programs, contracts, and preferential treatment in government procurement.
Examples of Businesses under NAICS 423390
Here are some examples of businesses or activities classified under this code:
- Wholesale distributors of roofing materials
- Suppliers specializing in insulation products
- Distributors offering drywall and plaster products
- Merchants selling prefabricated buildings (nonwood)
- Businesses distributing architectural metal shapes and ornamental ironwork
Detailed Code Breakdown: Items Covered Under NAICS 423390
| Product / Material Type | Description |
|---|---|
| Architectural metalwork merchant wholesalers | Wholesale of decorative and structural metal elements |
| Awnings (except canvas) merchant wholesalers | Retailers of non-canvas awnings |
| Bailey bridges merchant wholesalers | Supply of portable, pre-fabricated Bailey bridges |
| Bins, storage, merchant wholesalers | Storage solutions including bins |
| Building materials, fiberglass (except insulation) | Fiberglass materials excluding insulation, roofing, siding |
| Building paper merchant wholesalers | Wholesale distribution of construction building paper |
| Buildings, prefabricated nonwood, merchant wholesalers | Nonwood portable buildings |
| Ceiling tile merchant wholesalers | Wholesale ceiling tiles |
| Countertops (except wood, stone, concrete) merchant wholesalers | Countertops made from synthetic or alternative materials |
| Culvert pipe, metal and plastics, merchant wholesalers | Metal and plastic culvert pipes |
| Fencing and fencing accessories (except wood) merchant wholesalers | Metal/plastic fencing materials and accessories |
| Fiberglass building materials | Other fiberglass products excluding roofing and siding |
| Flat glass merchant wholesalers | Wholesale flat glass distribution |
| Gate and fence hardware merchant wholesalers | Hardware for gates and fencing |
| Glass, block and brick, merchant wholesalers | Glass blocks and bricks for construction |
| Glass, plate, merchant wholesalers | Large sheets of plate glass |
| Gypsum building products merchant wholesalers | Drywall, plaster, and other gypsum products |
| Iron and steel architectural shapes merchant wholesalers | Structural iron and steel shapes |
| Manufactured (mobile) homes merchant wholesalers | Supply of mobile or manufactured homes |
| Mastics, construction, merchant wholesalers | Construction mastics and sealants |
| Metal buildings merchant wholesalers | Pre-engineered metal buildings |
| Ornamental ironwork merchant wholesalers | Decorative iron components |
| Paper, building, merchant wholesalers | Construction grade paper products |
| Plate glass merchant wholesalers | Same as flat glass; large transparent glass sheets |
| Prefabricated buildings (except wood) merchant wholesalers | Modular buildings excluding wood |
| Septic tanks (except concrete) merchant wholesalers | Plastic or metal septic tanks |
| Silt fence and other fabrics for erosion control | Environmental protection fabrics |
| Storage bins merchant wholesalers | Large capacity storage containers |
| Structural assemblies, prefabricated (except wood) | Pre-assembled structural components excluding wood |
Frequently Asked Questions about NAICS 423390
What types of materials are included under NAICS 423390?
This code covers a wide range of construction materials including specialty metals, fiberglass products, prefabricated buildings, gypsum products, and more—anything not classified under other construction wholesale codes.
Who are the typical customers served?
Contractors, builders, construction firms, and government agencies requiring bulk construction materials often engage wholesalers under this NAICS code.
What is the SBA employee size standard for small businesses under 423390?
The size standard is generally 100 employees or fewer for businesses to qualify as small under this NAICS code.
Can manufacturers also be classified under this NAICS code?
No, this code is specific to merchant wholesalers (distributors) rather than manufacturers or retailers.
How can knowing this NAICS code benefit my business?
Understanding NAICS 423390 helps businesses identify competitive market segments, qualify for government contracts, and target customers needing specialized construction supplies.
Conclusion
NAICS code 423390—Other Construction Material Merchant Wholesalers—plays a vital role in the wholesale trade sector, supporting contractors and builders by distributing a vast array of construction supplies that fall outside stricter classifications. From architectural metalwork to prefabricated buildings and silt fencing, businesses under this code supply essential materials that keep projects moving.
Understanding the details, size standards, and business examples related to this NAICS code empowers industry players to better navigate government contracts and market opportunities, while strengthening supply chains within the construction sector.
Optimize your business strategy and market presence by leveraging knowledge of NAICS 423390 and its expansive profile within construction material wholesale trade.
