2022 NAICS national industry in sector 31-33 Manufacturing
327211 Flat Glass Manufacturing
NAICS 327211 is the US industry code for flat glass manufacturing. This U.S.
- Code
- 327211 (2022 NAICS)
- Title
- Flat Glass Manufacturing
- Part of
- Glass and Glass Product Manufacturing
- SBA small business limit
- Up to 1,100 employees
- Closest UK SIC
- 23110, 23120, 23130, 23140 and 1 more (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 (1) manufacturing flat glass by melting silica sand or cullet or (2) manufacturing both flat glass and laminated glass by melting silica sand or cullet.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Establishments primarily engaged in manufacturing laminated glass from purchased flat glass are classified in U.S. Industry 327215, Glass Product Manufacturing Made of Purchased Glass.
Activities listed under 327211
The Census index assigns these 5 activities to this code. If your business matches one, this is your code.
- Flat glass (e.g., float, plate) manufacturing
- Glass, plate, made in glass making plants
- Insulating glass, sealed units, made in glass making plants
- Laminated glass made in glass making plants
- Stained glass and stained glass products made in glass making plants
SBA size standard for 327211
To count as a small business for SBA loans and federal contracts under NAICS 327211, your business (including affiliates) must not exceed 1,100 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: 2310), so treat them as a starting point and check the definition.
- 23110Manufacture of flat glassUK SIC
- 23120Shaping and processing of flat glassUK SIC
- 23130Manufacture of hollow glassUK SIC
- 23140Manufacture of glass fibresUK SIC
- 23190Manufacture and processing of other glass, including technical glasswareUK SIC
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.