321114 — Wood Preservation
Description
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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Establishments primarily engaged in manufacturing wood products (except round wood poles, pilings, and posts)
- and treating them with preservatives are classified elsewhere in Subsector 321, Wood Product Manufacturing, based
- on the related production process.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 2491 - Wood Preserving (via SIC1987:2491→NAICS1997:321114→2002:321114→2007:321114→2012:321114→2017:321114→2022:321114)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3210 — Sawmill and Planing Mill Machinery
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 321114 valid in 2022? ▾
Yes, 321114 is a valid 6-digit 2022 NAICS national industry code representing 'Wood Preservation' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 321114? ▾
The Small Business Administration (SBA) has established a small business size standard of 550 employees for NAICS code 321114 (Wood Preservation), calculated based on employees.
What is the legacy SIC equivalent for NAICS 321114? ▾
According to official Census Bureau concordance tables, NAICS code 321114 (Wood Preservation) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 2491 - Wood Preserving.
Related Pages & Tools
Further regulatory reference links for NAICS code 321114:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 321114 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Wood Preservation).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.