NAICS 327390

Overview

The North American Industry Classification System (NAICS) is the common standard federal statistical programs use to classify establishments when producing economic data. Developed under the Office of Management and Budget (OMB) and adopted in 1997 to replace SIC, it was designed jointly by the U.S. Economic Classification Policy Committee, Statistics Canada, and Mexico’s INEGI to enable consistent North American comparisons. ¹

NAICS 327390 — Other Concrete Product Manufacturing — covers establishments primarily engaged in manufacturing concrete products other than concrete block, brick, or pipe; those items are classified under 327331 and 327332, respectively. Federal statistical programs use this code to tabulate industry-level outputs and structure cross-industry comparisons. ²

Census programs are transitioning publications to the 2022 NAICS vintage; dissemination on the 2022 basis began with the 2022 Economic Census and is planned for full adoption across programs by the end of calendar year 2027. ³

• See also on G2X:
  • G2X — NAICS 327390 overview
  • G2X — NAICS 327331 (Concrete Block and Brick)
  • G2X — NAICS 327320 (Ready-Mix Concrete)

What this NAICS covers

• Manufacturing precast or other concrete products except concrete block, brick, and pipe. ²
• Plant-made precast concrete components for buildings or civil works (excluding block/brick/pipe). ²
• Concrete burial vaults manufactured at a plant. ²
• Precast terrazzo units produced at a plant (terrazzo set at the job site is not included). ⁶
• Concrete products sold as finished goods rather than concrete supplied in plastic (ready-mix) form. ²

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	327331	Concrete Block and Brick Manufacturing (distinct from 327390’s scope). 2
NAICS	327332	Concrete Pipe Manufacturing (pipe is excluded from 327390). 2
PSC	5620	Tile, Brick and Block (includes concrete slabs and grilles relevant to finished concrete goods). 4
PSC	5670	Building Components, Prefabricated (covers prefabricated components such as grilles and mounted partitions). 4

Industry boundaries and exclusions

• Concrete brick and block production is classified to NAICS 327331; it is not part of 327390. ²
• Concrete pipe production falls under NAICS 327332, not 327390. ²
• Ready-mix concrete (plastic, unhardened) delivered from batch plants is NAICS 327320, not 327390. ⁵
• Job-site terrazzo work (mixing marble particles and cement at the job site) is construction activity; plant-made precast terrazzo units belong in 327390. ⁶

Frequently asked questions

• What activities define NAICS 327390?

  • Establishments primarily manufacture concrete products other than concrete block, brick, and pipe. Block and brick fall under NAICS 327331, and pipe is NAICS 327332. See also on G2X: NAICS 327390. ²

• Are concrete burial vaults included in 327390?

  • Yes. The official NAICS definition and cross-references include concrete burial vault manufacturing within NAICS 327390 when produced at a plant as finished concrete products. ²

• How does 327390 differ from ready-mix concrete manufacturing?

  • NAICS 327390 covers finished concrete products (e.g., precast items), while NAICS 327320 covers supplying unhardened, plastic ready-mix concrete for cast-in-place construction. ⁵

• Is on-site terrazzo work classified in 327390?

  • No. On-site terrazzo installation, where terrazzo is mixed and set at the job site, is classified under NAICS 238340. Only plant-made precast terrazzo units are included in NAICS 327390. ⁶

Useful resources

• Census NAICS 2022 definition for NAICS 327390 — Other Concrete Product Manufacturing; includes official description, examples, and cross‑references: https://www.census.gov/naics/?input=327390&year=2022
• Census NAICS 2022 homepage and search tool — browse Manufacturing (31-33), verify definitions, and access reference files: https://www.census.gov/naics/?year=2022
• NAICS 2017-to-2022 concordances — identify any structure changes and build time-series bridges for analyses involving 327390: https://www.census.gov/naics/concordances/concordances-2022.html
• Economic Census tables portal — access 2022 Manufacturing data and filter to NAICS 327390 on data.census.gov for industry-level statistics: https://www.census.gov/programs-surveys/economic-census/data/tables.html
• County Business Patterns (CBP) — employment and establishment counts; pre-filtered query for NAICS 327390: https://data.census.gov/table?q=327390&d=CBP
• Economic Census on data.census.gov — direct query starting point for tables referencing NAICS 327390: https://data.census.gov/table?q=327390&d=ECN
• SBA Table of Size Standards — find the current small business size standard that applies to NAICS 327390 (search within the table by code or description): https://www.sba.gov/document/support/table-size-standards
• Product and Service Code (PSC) Manual — official procurement coding reference to align concrete product buys with PSC categories related to manufacturing outputs: https://www.acquisition.gov/psc-manual
• PSC Tool — interactive government tool to search and interpret PSCs when mapping concrete goods to PSC categories during market research: https://psctool.us/

References

1. U.S. Census Bureau — Introduction to the North American Industry Classification System (NAICS). https://www.census.gov/naics/
2. U.S. Census Bureau — 2022 NAICS definition for Other Concrete Product Manufacturing (327390). https://www.census.gov/naics/?input=327390&year=2022
3. U.S. Census Bureau — NAICS implementation for the Economic Census (2022 basis and related guidance). https://www.census.gov/programs-surveys/economic-census/about/naics.html
4. U.S. General Services Administration — Product and Service Code (PSC) Manual. https://www.acquisition.gov/psc-manual
5. U.S. Census Bureau — 2022 NAICS definition for Ready-Mix Concrete Manufacturing (327320). https://www.census.gov/naics/?input=327320&year=2022
6. U.S. Census Bureau — 2022 NAICS definition for Tile and Terrazzo Contractors (238340). https://www.census.gov/naics/?input=238340&year=2022