NAICS 321114

Overview

The North American Industry Classification System organizes business establishments by production process so federal statistical agencies can consistently collect, analyze, and publish data on the U.S. economy. Developed with Canada and Mexico under OMB and adopted in 1997, the current vintage is 2022. ¹
NAICS 321114 covers establishments primarily engaged in treating wood (sawed, planed, or shaped in other establishments) with preservatives (e.g., creosote or chromated copper arsenate) to prevent decay, fire, and insect damage, and/or sawing round wood poles, pilings, and posts and treating them. Fabricators that manufacture other wood products and then treat them are classified elsewhere in Subsector 321 based on the product made. ²

See also on G2X:

• G2X — NAICS 321114 overview
• G2X — NAICS 321113 (Sawmills)
• G2X — PSC 5510 (Lumber and Related Basic Wood Materials)

What this NAICS covers

• Preservative treatment of previously milled or shaped lumber and wood items by impregnation processes. ²
• Pressure-treating wood to resist biological decay, insects, or fire (e.g., using creosote or chromated copper arsenate). ²
• Sawing round wood into poles, pilings, and posts followed by preservative treatment. ²
• Treating wood products manufactured in other establishments (e.g., ties, timbers, boards) when the activity at this establishment is the preservative process. ²
• Facilities whose primary output is treated wood poles, pilings, posts, or treated lumber for utility, marine, or structural applications. ²
• Operations grouped in Industry Group 32111 (Sawmills and Wood Preservation) when the core process is wood preservation. ²

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	321113	Sawmills
PSC	5510	Lumber and Related Basic Wood Materials
PSC	5520	Millwork
PSC	5530	Plywood and Veneer

Scope and boundary notes

• Establishments that manufacture wood products (except round wood poles, pilings, and posts) and also treat them are classified elsewhere in Subsector 321 according to the product manufactured, not in 321114. ²
• Industry Group 32111 includes both sawmills and preservative treatment facilities; classification depends on the primary production process performed at the establishment. ²

Small business size standard (SBA)

• The SBA small business size standard for 321114 is 550 employees (effective March 17, 2023). ³

NAICS 2022 adoption status

• Census programs began publishing statistics on the 2022 NAICS basis with the 2022 Economic Census; most Census economic programs are scheduled to adopt 2022 NAICS by the end of calendar year 2027. ⁴

Frequently asked questions

• What activities are in scope for NAICS 321114?
  Treating wood with preservatives (e.g., creosote, chromated copper arsenate) to prevent decay, insects, or fire, and sawing and treating round wood poles, pilings, and posts. It also covers treating wood items produced elsewhere when preservation is the primary activity at the establishment. ²

• What is the SBA small business size standard for 321114?
  SBA sets the size standard at 550 employees for this manufacturing industry. The current table became effective on March 17, 2023, and applies to offers and set-asides using 321114 unless superseded by a future SBA update. ³

• Which PSC codes commonly align with treated wood buys?
  Common product PSCs include 5510 (Lumber and Related Basic Wood Materials), 5520 (Millwork), and 5530 (Plywood and Veneer), as listed in federal PSC references. ⁵

• How does 321114 differ from 321113?
  321113 covers sawmills that produce boards, timbers, and similar products, whereas 321114 focuses on preservative treatment (and sawing and treating round wood poles/pilings/posts). Classification depends on the establishment’s primary process. ²

• Does 321114 include fabricating finished wood products?
  No. If an establishment manufactures finished wood products (other than round poles, pilings, and posts) and treats them, it is classified elsewhere in Subsector 321 by the product made, not under preservation. ²

Useful resources

• G2X — NAICS 321114 overview
• U.S. Census Bureau — NAICS 321114 description and cross-references. ²
• U.S. Census Bureau — NAICS overview and structure (2022 Economic Census guidance). ¹
• SBA — Table of Small Business Size Standards (shows 550-employee standard for 321114). ³
• Acquisition.gov — DFARS PGI assignments for wood-related PSCs (e.g., 5510, 5520, 5530). ⁵

References

1. U.S. Census Bureau. “NAICS Codes & Understanding Industry Classification Systems.” https://www.census.gov/programs-surveys/economic-census/year/2022/technical-documentation/code-lists/understanding-naics-redirect.html
2. U.S. Census Bureau. NAICS 2022 — 321114 Wood Preservation (definition, examples, cross-references). https://www.census.gov/naics/?input=321114&year=2022&details=321114
3. U.S. Small Business Administration. Table of Small Business Size Standards (effective March 17, 2023). https://www.sba.gov/document/support-table-size-standards
4. U.S. Census Bureau. “The Census Bureau’s Implementation of the 2022 NAICS (Implementation Timeline).” https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html
5. Acquisition.gov. “DFARS PGI 208.7006 Coordinated acquisition assignments.” https://www.acquisition.gov/node/55785/printable/print