321992 — Prefabricated Wood Building Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing prefabricated wood buildings and wood sections and panels for prefabricated wood buildings (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Fabricating wood buildings or wood sections and panels for buildings at the construction site--are classified
- in Sector 23, Construction;
- Making manufactured homes (i.e., mobile homes)--are classified in U.S. Industry 321991, Manufactured
- Home (Mobile Home) Manufacturing; and
- Setting up manufactured homes (i.e., mobile homes) at the construction site--are classified in Industry
- 238990, All Other Specialty Trade Contractors.
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 2452 - Prefabricated Wood Buildings and Components (via SIC1987:2452→NAICS1997:321992→2002:321992→2007:321992→2012:321992→2017:321992→2022:321992)
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 3220 — Woodworking Machines
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 321992 valid in 2022? ▾
Yes, 321992 is a valid 6-digit 2022 NAICS national industry code representing 'Prefabricated Wood Building Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 321992? ▾
The Small Business Administration (SBA) has established a small business size standard of 500 employees for NAICS code 321992 (Prefabricated Wood Building Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 321992? ▾
According to official Census Bureau concordance tables, NAICS code 321992 (Prefabricated Wood Building Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 2452 - Prefabricated Wood Buildings and Components.
Related Pages & Tools
Further regulatory reference links for NAICS code 321992:
- 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 321992 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Prefabricated Wood Building Manufacturing).
- 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.