423320 — Brick, Stone, and Related Construction Material Merchant Wholesalers
Description
This industry comprises establishments primarily engaged in the merchant wholesale distribution of stone, cement, lime, construction sand, and gravel; brick; asphalt and concrete mixtures; and/or concrete, stone, and structural clay products (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Merchant wholesale distribution of refractory brick and other refractory products or industrial sand--are
- classified in Industry 423840, Industrial Supplies Merchant Wholesalers;
- Selling ready-mix concrete--are classified in Industry 327320, Ready-Mix Concrete Manufacturing; and
- WHOLESALE TRADE 311
- Quarrying, dredging, and/or beneficiating construction sand and gravel--are classified in U.S. Industry
- 212321, Construction Sand and Gravel Mining.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 5032 - Brick, Stone, and Related Construction Materials (via SIC1987:5032→NAICS1997:42132→2002:423320→2007:423320→2012:423320→2017:423320→2022:423320)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 5620 — Tile, Brick, and Block
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 423320 valid in 2022? ▾
Yes, 423320 is a valid 6-digit 2022 NAICS national industry code representing 'Brick, Stone, and Related Construction Material Merchant Wholesalers' under Sector 42 in the official classification index.
What is the SBA size standard for NAICS code 423320? ▾
The Small Business Administration (SBA) has established a small business size standard of 150 employees for NAICS code 423320 (Brick, Stone, and Related Construction Material Merchant Wholesalers), calculated based on employees.
What is the legacy SIC equivalent for NAICS 423320? ▾
According to official Census Bureau concordance tables, NAICS code 423320 (Brick, Stone, and Related Construction Material Merchant Wholesalers) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 5032 - Brick, Stone, and Related Construction Materials.
Related Pages & Tools
Further regulatory reference links for NAICS code 423320:
- 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.
- NAICS 423320 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Brick, Stone, and Related Construction Material Merchant Wholesalers).
- 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.