NAICS Code 321114 — Wood Preservation

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 2 national industries under 32111 (Sawmills and Wood Preservation).

Code	321114
Title	Wood Preservation
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	550 employees

Official definition (2022 NAICS)

This U.S. industry comprises establishments primarily engaged in (1) treating wood sawed, planed, or shaped in other establishments with creosote or other preservatives, such as alkaline copper quat, copper azole, and sodium borates, to prevent decay and to protect against fire and insects and/or (2) sawing round wood poles, pilings, and posts and treating them with preservatives.

Cross-References.

Is a business under 321114 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 321114 qualifies as a small business if it does not exceed 550 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 321114 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	321	Wood Product Manufacturing
Industry Group	3211	Sawmills and Wood Preservation
NAICS Industry	32111	Sawmills and Wood Preservation
National Industry	321114	Wood Preservation

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
2491	Wood Preserving

Related National Industry codes

• 321113 — Sawmills

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.