2022 NAICS national industry in sector 31-33 Manufacturing
332311 Prefabricated Metal Building and Component Manufacturing
NAICS 332311 is the US industry code for prefabricated metal building and component manufacturing. This U.S.
- Code
- 332311 (2022 NAICS)
- Title
- Prefabricated Metal Building and Component Manufacturing
- Part of
- Plate Work and Fabricated Structural Product Manufacturing
- SBA small business limit
- Up to 750 employees
- Closest UK SIC
- 25110 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in manufacturing prefabricated metal buildings, panels, and sections.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Making manufactured homes (i.e., mobile homes) and prefabricated wood buildings are classified in Industry 32199, All Other Wood Product Manufacturing.
- Constructing prefabricated buildings on site are classified in Subsector 236, Construction of Buildings.
- Manufacturing metal windows and doors are classified in U.S. Industry 332321, Metal Window and Door Manufacturing.
Activities listed under 332311
The Census index assigns these 16 activities to this code. If your business matches one, this is your code.
- Buildings, prefabricated metal, manufacturing
- Carports, prefabricated metal, manufacturing
- Dwellings, prefabricated metal, manufacturing
- Farm buildings, prefabricated metal, manufacturing
- Garages, prefabricated metal, manufacturing
- Greenhouses, prefabricated metal, manufacturing
- Houses, prefabricated metal, manufacturing
- Panels, prefabricated metal building, manufacturing
- Portable buildings, prefabricated metal, manufacturing
- Prefabricated buildings, metal, manufacturing
- Prefabricated homes, metal, manufacturing
- Sections for prefabricated metal buildings manufacturing
- Sheds (e.g., garden, storage, utility), prefabricated metal, manufacturing
- Silos, prefabricated metal, manufacturing
- Utility buildings, prefabricated metal, manufacturing
- Warehouses, prefabricated metal, manufacturing
SBA size standard for 332311
To count as a small business for SBA loans and federal contracts under NAICS 332311, your business (including affiliates) must not exceed 750 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2511), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.