NAICS Code 332311 — Prefabricated Metal Building and Component Manufacturing

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 3 national industries under 33231 (Plate Work and Fabricated Structural Product Manufacturing).

Code	332311
Title	Prefabricated Metal Building and Component Manufacturing
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	750 employees

Official definition (2022 NAICS)

This U.S. industry comprises establishments primarily engaged in manufacturing prefabricated metal buildings, panels, and sections.

Is a business under 332311 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 332311 qualifies as a small business if it does not exceed 750 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 332311 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	332	Fabricated Metal Product Manufacturing
Industry Group	3323	Architectural and Structural Metals Manufacturing
NAICS Industry	33231	Plate Work and Fabricated Structural Product Manufacturing
National Industry	332311	Prefabricated Metal Building and Component Manufacturing

No direct SIC mapping is shown for this code: it was introduced or redefined after the official 1987 SIC ↔ 2002 NAICS concordance. Use the crosswalk tool to explore related legacy codes.

Related National Industry codes

• 332312 — Fabricated Structural Metal Manufacturing
• 332313 — Plate Work Manufacturing

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.