327320 — Ready-Mix Concrete Manufacturing
Description
This industry comprises establishments, such as batch plants or mix plants, primarily engaged in manufacturing concrete delivered to a purchaser in a plastic and unhardened state. Ready-mix concrete manufacturing establishments may mine, quarry, or purchase sand and gravel.
Exclusions & Cross-References
- Operating sand or gravel pits--are classified in U.S. Industry 212321, Construction Sand and Gravel
- Mining; and
- Manufacturing dry mix concrete--are classified in U.S. Industry 327999, All Other Miscellaneous
- Nonmetallic Mineral Product Manufacturing.
Overview Facts
| NAICS Code | 327320 |
|---|---|
| Industry Title | Ready-Mix Concrete Manufacturing |
| SBA Size Standard | 500 employees |
| IRS PBA Code | 327300 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 327 → 3273 |
| 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 3273 - Ready-Mixed Concrete (via SIC1987:3273→NAICS1997:32732→2002:327320→2007:327320→2012:327320→2017:327320→2022:327320)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 327320:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing 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 3273
Frequently Asked Questions (FAQ)
Is 327320 a valid 2022 NAICS code?
NAICS 327320 is 'Ready-Mix Concrete Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 500 employees.
What is the SBA size standard for NAICS 327320?
The SBA small business size standard for NAICS 327320 is 500 employees (based on employees).
What is the legacy SIC code mapping for 327320?
NAICS code 327320 maps to the legacy 1987 SIC codes: 3273 - Ready-Mixed Concrete.