2022 NAICS industry in sector 31-33 Manufacturing
32191 Millwork
NAICS 32191 is the US industry code for millwork. It covers establishments primarily engaged in manufacturing hardwood and softwood cut stock and dimension stock (i.e., shapes); wood windows and wood doors; and other millwork including wood flooring.
Official definition
This industry comprises establishments primarily engaged in manufacturing hardwood and softwood cut stock and dimension stock (i.e., shapes); wood windows and wood doors; and other millwork including wood flooring. Dimension stock or cut stock is defined as lumber and worked wood products cut or shaped to specialized sizes. These establishments generally use woodworking machinery, such as jointers, planers, lathes, and routers to shape wood.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing dimension lumber, boards, beams, timbers, poles, ties, shingles, shakes, siding, and wood chips from logs and bolts are classified in Industry 32111, Sawmills and Wood Preservation.
- Fabricating millwork at the construction site are classified in Industry 23835, Finish Carpentry Contractors.
- Manufacturing wood furniture frames and finished wood furniture parts are classified in Industry 33721, Office Furniture (including Fixtures) Manufacturing.
Codes in 32191
Data last changed November 14, 2026. How this page is built.