321918 Other Millwork (including Flooring)

Official definition

This U.S. industry comprises establishments primarily engaged in manufacturing millwork (except wood windows, wood doors, and cut stock).

Examples Census gives

• Clear and finger joint wood moldings manufacturing
• Decorative wood moldings (e.g., base, chair rail, crown, shoe) manufacturing
• Ornamental woodwork (e.g., cornices, mantel) manufacturing
• Planing mills, millwork
• Stairwork (e.g., newel posts, railings, stairs, staircases), wood, manufacturing
• Wood flooring manufacturing
• Wood shutters manufacturing

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Manufacturing wood windows and doors are classified in U.S. Industry 321911, Wood Window and Door Manufacturing.
• Manufacturing cut stock, resawing lumber, and/or planing purchased lumber are classified in U.S. Industry 321912, Cut Stock, Resawing Lumber, and Planing.

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 321918

The Census index assigns these 35 activities to this code. If your business matches one, this is your code.

• Bamboo flooring manufacturing
• Baseboards, floor, wood, manufacturing
• Brackets, wood, manufacturing
• Clear and finger joint wood moldings manufacturing
• Columns, porch, wood, manufacturing
• Cornices, wood, manufacturing
• Decorative wood moldings (e.g., base, chair rail, crown, shoe) manufacturing
• Door shutters, wood, manufacturing
• Door trim, wood molding, manufacturing
• Exterior wood shutters manufacturing
• Floor baseboards, wood, manufacturing
• Flooring, wood, manufacturing
• Moldings, clear and finger joint wood, manufacturing
• Moldings, wood and covered wood, manufacturing
• Newel posts, wood, manufacturing
• Ornamental woodwork (e.g., cornices, mantels) manufacturing
• Panel work, wood millwork, manufacturing
• Parquet flooring, hardwood, manufacturing
• Parquetry, hardwood, manufacturing
• Planing mills, millwork
• Porch work (e.g., columns, newels, rails, trellises), wood, manufacturing
• Railings, wood stair, manufacturing
• Shutters, door and window, wood and covered wood, manufacturing
• Shutters, wood, manufacturing
• Stair railings, wood, manufacturing
• Stairwork (e.g., newel posts, railings, staircases, stairs), wood, manufacturing
• Trellises, wood, manufacturing
• Trim, wood and covered wood, manufacturing
• Venetian blind slats, wood, manufacturing
• Wainscots, wood, manufacturing
• Weatherstrip, wood, manufacturing
• Window trim, wood and covered wood moldings, manufacturing
• Wood flooring (including laminate and wood composite) manufacturing
• Wood moldings (e.g., prefinished, unfinished), clear and finger joint, manufacturing
• Wood shutters manufacturing

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 321918

To count as a small business for SBA loans and federal contracts under NAICS 321918, your business (including affiliates) must not exceed 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: 1610, 1622), so treat them as a starting point and check the definition.

• 16100Sawmilling and planing of woodUK SIC
• 16220Manufacture of assembled parquet floorsUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 321911Wood Window and Door Manufacturing
• 321912Cut Stock, Resawing Lumber, and Planing