SIC 3449 — Miscellaneous Structural Metal Work
Description & Classification
SIC code 3449 representing 'Miscellaneous Structural Metal Work' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 332321 - Metal Window and Door Manufacturing (via SIC1987:3449→NAICS1997:332321→2002:332321→2007:332321→2012:332321→2017:332321→2022:332321)
- NAICS 332323 - Ornamental and Architectural Metal Work Manufacturing (via SIC1987:3449→NAICS1997:332323→2002:332323→2007:332323→2012:332323→2017:332323→2022:332323)
- NAICS 332114 - Custom Roll Forming (via SIC1987:3449→NAICS1997:332114→2002:332114→2007:332114→2012:332114→2017:332114→2022:332114)
- NAICS 332312 - Fabricated Structural Metal Manufacturing (via SIC1987:3449→NAICS1997:332312→2002:332312→2007:332312→2012:332312→2017:332312→2022:332312)
Classification Details
| SIC Code | 3449 |
|---|---|
| Industry Title | Miscellaneous Structural Metal Work |
| Division | Division D: Manufacturing |
| Major Group | Major Group 34: Fabricated Metal Products, Except Machinery and Transportation Equipment |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3449:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 34 Hub — View other legacy industries in this business division.
Related Industries in Major Group 34
Frequently Asked Questions (FAQ)
What industry does SIC code 3449 represent?
SIC 3449 is 'Miscellaneous Structural Metal Work', a 4-digit Standard Industrial Classification (SIC) code under Major Group 34: Fabricated Metal Products, Except Machinery and Transportation Equipment (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 332321 (Metal Window and Door Manufacturing), 332323 (Ornamental and Architectural Metal Work Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3449?
SIC code 3449 maps to modern NAICS codes: 332321 - Metal Window and Door Manufacturing, 332323 - Ornamental and Architectural Metal Work Manufacturing, 332114 - Custom Roll Forming, 332312 - Fabricated Structural Metal Manufacturing.