Construction › Specialty Trade Contractors › Foundation, Structure, and Building Exterior Contractors
Sector
Construction
Subsector
Specialty Trade Contractors
Industry Group
Foundation, Structure, and Building Exterior Contractors
National Industry (This Code)
Structural Steel and Precast Concrete Contractors
Source: U.S. Census Bureau 2022 NAICS
Based on SBA Table of Small Business Size Standards (2024)
Size Standard
$19M average annual receipts
Measurement Period
3-year average
Standard Type
Revenue-Based
Applies To
All contracts under NAICS 238120
Set-Aside Programs
8(a), WOSB, HUBZone, SDVOSB
Certification Required
No (self-certify in SAM.gov)
Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.
The following activities are classified elsewhere in the NAICS system:
NAICS code 238120 — Structural Steel and Precast Concrete Contractors — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Foundation, Structure, and Building Exterior Contractors space will be able to find your business.
If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of $19M average annual receipts, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 238120.
NAICS code 238120 is 'Structural Steel and Precast Concrete Contractors', classified under the Construction sector (NAICS 23). This industry comprises establishments primarily engaged in (1) erecting and assembling structural parts made from steel or precast concrete (e.g., steel beams, structural steel components, and simila
The SBA defines a small business under NAICS code 238120 (Structural Steel and Precast Concrete Contractors) as one with $19M average annual receipts. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.
To register NAICS code 238120 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 238120 (Structural Steel and Precast Concrete Contractors) to your NAICS code list. You may designate one code as your Primary NAICS code.
Other codes in Foundation, Structure, and Building Exterior Contractors
PSC codes commonly used with this NAICS sector
Source: GSA PSC Manual April 2025
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