331221

Rolled Steel Shape Manufacturing

Manufacturing › Primary Metal Manufacturing › Steel Product Manufacturing from Purchased Steel

SBA Size Standard

1,000 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

33

Sector

Manufacturing

331

Subsector

Primary Metal Manufacturing

3312

Industry Group

Steel Product Manufacturing from Purchased Steel

331221

National Industry (This Code)

Rolled Steel Shape Manufacturing

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This U.S. industry comprises establishments primarily engaged in rolling or drawing shapes (except wire), such as plate, sheet, strip, rod, and bar, from purchased steel.

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

1,000 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 331221

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.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Making steel and rolling or drawing steel shapes, or manufacturing concrete reinforcing bars in an iron and steel mill--are classified in Industry 331110, Iron and Steel Mills and Ferroalloy Manufacturing;
Drawing wire from purchased steel--are classified in U.S. Industry 331222, Steel Wire Drawing; and
Manufacturing fabricated structural metal products from concrete reinforcing bars and fabricated bar joists--are classified in U.S. Industry 332312, Fabricated Structural Metal Manufacturing.

How to Use NAICS 331221 in SAM.gov

NAICS code 331221Rolled Steel Shape Manufacturing — 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 Steel Product Manufacturing from Purchased Steel 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 1,000 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 331221.

Log in Entity Registration Goods & Services Add NAICS Code Enter 331221 Save

Frequently Asked Questions

What is NAICS code 331221?

NAICS code 331221 is 'Rolled Steel Shape Manufacturing', classified under the Manufacturing sector (NAICS 33). This U.S. industry comprises establishments primarily engaged in rolling or drawing shapes (except wire), such as plate, sheet, strip, rod, and bar, from purchased steel. Cross-References. Establishm

What is the SBA small business size standard for NAICS code 331221?

The SBA defines a small business under NAICS code 331221 (Rolled Steel Shape Manufacturing) as one with 1,000 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 331221 in SAM.gov?

To register NAICS code 331221 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 331221 (Rolled Steel Shape Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

Quick Actions

Related NAICS Codes

Other codes in Steel Product Manufacturing from Purchased Steel

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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