2022 NAICS national industry in sector 31-33 Manufacturing
327420 Gypsum Product Manufacturing
NAICS 327420 is the US industry code for gypsum product manufacturing. It covers establishments primarily engaged in manufacturing gypsum products, such as wallboard, plaster, plasterboard, molding, ornamental moldings, statuary, and architectural plaster work.
- Code
- 327420 (2022 NAICS)
- Title
- Gypsum Product Manufacturing
- Part of
- Lime and Gypsum Product Manufacturing
- SBA small business limit
- Up to 1,500 employees
- Closest UK SIC
- 23910, 23990 (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 industry comprises establishments primarily engaged in manufacturing gypsum products, such as wallboard, plaster, plasterboard, molding, ornamental moldings, statuary, and architectural plaster work. Gypsum product manufacturing establishments may mine, quarry, or purchase gypsum.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Establishments primarily engaged in operating gypsum mines or quarries are classified in Industry 212390, Other Nonmetallic Mineral Mining and Quarrying.
Activities listed under 327420
The Census index assigns these 25 activities to this code. If your business matches one, this is your code.
- Art goods (e.g., gypsum, plaster of paris) manufacturing
- Board, gypsum, manufacturing
- Cement, Keene's (i.e., tiling plaster), manufacturing
- Columns, architectural or ornamental plaster work, manufacturing
- Ecclesiastical statuary, gypsum, manufacturing
- Flower boxes, plaster of paris, manufacturing
- Fountains, plaster of paris, manufacturing
- Gypsum building products manufacturing
- Gypsum products (e.g., block, board, plaster, lath, rock, tile) manufacturing
- Gypsum statuary manufacturing
- Images, small gypsum, manufacturing
- Joint compounds, gypsum based, manufacturing
- Keene's cement manufacturing
- Lath, gypsum, manufacturing
- Ornamental and architectural plaster work (e.g., columns, mantels, molding) manufacturing
- Orthopedic plaster, gypsum, manufacturing
- Plaster and plasterboard, gypsum, manufacturing
- Plaster of paris manufacturing
- Plaster of paris products (e.g., columns, statuary, urns) manufacturing
- Plaster, gypsum, manufacturing
- Sculptures (e.g., gypsum, plaster of paris) manufacturing
- Statuary (e.g., gypsum, plaster of paris) manufacturing
- Urns (e.g., gypsum, plaster of paris) manufacturing
- Vases (e.g., gypsum, plaster of paris) manufacturing
- Wallboard, gypsum, manufacturing
SBA size standard for 327420
To count as a small business for SBA loans and federal contracts under NAICS 327420, your business (including affiliates) must not exceed 1,500 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: 2394, 2395), so treat them as a starting point and check the definition.
- 23910Production of abrasive productsUK SIC
- 23990Manufacture of other non-metallic mineral products n.e.c.UK 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.