423390 — Other Construction Material Merchant Wholesalers
Description
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
Exclusions & Cross-References
- Merchant wholesale distribution of products of the primary metals industries--are classified in Industry
- 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--are
- classified in Industry 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--are
- classified in Industry 423320, Brick, Stone, and Related Construction Material Merchant Wholesalers;
- Merchant wholesale distribution of nonwood roofing and nonwood siding and insulation materials--are
- classified in Industry 423330, Roofing, Siding, and Insulation Material Merchant Wholesalers;
- Merchant wholesale distribution of electrical supplies and wiring supplies--are classified in Industry
- 423610, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant
Overview Facts
| NAICS Code | 423390 |
|---|---|
| Industry Title | Other Construction Material Merchant Wholesalers |
| SBA Size Standard | 100 employees |
| IRS PBA Code | 423300 (rolled-up match) |
| Sectors Hierarchy | Sector 42 → 423 → 4233 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 5039 - Construction Materials, NEC (via SIC1987:5039→NAICS1997:42139→2002:423390→2007:423390→2012:423390→2017:423390→2022:423390)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 423390:
- Sector 42 Directory Hub — List of related industries in the Wholesale Trade sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 4233
Frequently Asked Questions (FAQ)
Is 423390 a valid 2022 NAICS code?
NAICS 423390 is 'Other Construction Material Merchant Wholesalers', a 2022 U.S. national industry under Sector 42 (Wholesale Trade); the SBA small-business size standard is 100 employees.
What is the SBA size standard for NAICS 423390?
The SBA small business size standard for NAICS 423390 is 100 employees (based on employees).
What is the legacy SIC code mapping for 423390?
NAICS code 423390 maps to the legacy 1987 SIC codes: 5039 - Construction Materials, NEC.