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US Standard Industrial Classification (SIC) Code Lookup

Division: D - Manufacturing

US-SIC Code 3449 - Miscellaneous Structural Metal Work

Industry Description

Establishments primarily engaged in manufacturing miscellaneous structural metal work, such as metal plaster bases, fabricated bar joists, and concrete reinforcing bars. Also included in this industry are establishments primarily engaged in custom roll forming of metal.

Business Examples

Common types of business activities within US SIC 3449 - Miscellaneous Structural Metal Work are:

  • Bars, concrete reinforcing: fabricated steel
  • Curtain wall, metal
  • Custom roll formed products, metal
  • Joists, fabricated bar
  • Landing mats, aircraft: metal
  • Lath, expanded metal
  • Plastering accessories, metal

IBISWorld Industry Research Report

Metal Stamping & Forging in the US (33211)

Revenue 2025

$35.2bn

Growth 2025

2.36%

Key Trends

  • The industry's key downstream markets consistently rank product quality, precision and turnaround time as higher purchasing factors than price

  • Unsteady demand from nearly all major downstream markets has hurt manufacturers

  • Operators with the greatest potential for growth are those with value-added products

Products and Services

US-SIC Hierarchy 3449 - Miscellaneous Structural Metal Work

US-SIC Code 3449 - Miscellaneous Structural Metal Work sits in the 2-digit Miscellaneous Structural Metal Work sector. US SIC codes can be 2 to 8 digits and the further along the hierarchy, the more detailed and specific the category will be.

Division: D

Division Title: Manufacturing

2 Digits 3 Digits 4 Digits

Extended US-SIC Hierarchy for 3449 - Miscellaneous Structural Metal Work

For business marketing and targeting, US SIC Codes have been extended to provide more specific classifications within US-SIC 3449 - Miscellaneous Structural Metal Work. Extended US SIC Codes are being continuously updated to reflect the current business environment.

6 Digit SIC Codes

  • 344901 Metal lath (manufacturers)
  • 344902 Roll forming (manufacturers)
  • 344903 Curtain walls-manufacturers
  • 344904 Concrete reinforcements-manufacturers
  • 344998 Structural metal work-misc (mfrs)

8 Digit SIC Codes

  • 34490000 Miscellaneous metalwork
  • 34490100 Fabricated bar joists and concrete reinforcing bars
  • 34490101 Bars, concrete reinforcing: fabricated steel
  • 34490102 Joists, fabricated bar
  • 34490200 Metal plaster bases
  • 34490201 Lath, expanded metal
  • 34490202 Plastering accessories, metal
  • 34499900 Miscellaneous metalwork, nec
  • 34499901 Curtain wall, metal
  • 34499902 Curtain walls for buildings, steel
  • 34499903 Custom roll formed products
  • 34499904 Landing mats, aircraft: metal

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US SIC Code Directory

Each US SIC Code is part of a Division, which corresponds with a numerical range. Select a Division category from the table below, then drill down to discover the industries within that Division.

Division US-SIC Code Sector title
A 01-09 Agriculture, Forestry, and Fishing
B 10-14 Mining
C 15-17 Construction
D 20-39 Manufacturing
E 40-49 Transportation, Communications, Electric, Gas, and Sanitary Services
F 50-51 Wholesale Trade
G 52-59 Retail Trade
H 60-67 Finance, Insurance, and Real Estate
I 70-89 Services
J 90-99 Public Administration

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