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US Standard Industrial Classification (SIC) Code Lookup

Division: D - Manufacturing

US-SIC Code 2491 - Wood Preserving

Industry Description

Establishments primarily engaged in treating wood, sawed or planed in other establishments, with creosote or other preservatives to prevent decay and to protect against fire and insects. This industry also includes the cutting, treating, and selling of poles, posts, and piling, but establishments primarily engaged in manufacturing other wood products, which they may also treat with preservatives, are not included.

Business Examples

Common types of business activities within US SIC 2491 - Wood Preserving are:

  • Bridges and trestles, wood: treated
  • Creosoting of wood
  • Crossties, treated
  • Flooring, wood block: treated
  • Millwork, treated
  • Mine props, treated
  • Mine ties, wood: treated
  • Piles, foundation and marine construction: treated
  • Piling, wood: treated
  • Poles and pole crossarms, treated
  • Poles, cutting and preserving
  • Posts, wood: treated
  • Preserving of wood (creosoting)
  • Railroad cross bridge and switch ties treated
  • Railway crossties, wood: treated
  • Structural lumber and timber, treated
  • Vehicle lumber, treated
  • Wood fence: pickets, poling, rails-treated
  • Wood products, creosoted

IBISWorld Industry Research Report

Sawmills & Wood Production in the US (32111)

Revenue 2025

$54bn

Growth 2025

1.02%

Key Trends

  • Sawmill operators experience a fundamentally different economic climate than most US businesses

  • A significant fraction of all wood boards produced in the United States go to framing local residential construction

  • The crash of the housing mortgage market in 2022 has dramatically reduced demand for timber

Products and Services

US-SIC Hierarchy 2491 - Wood Preserving

US-SIC Code 2491 - Wood Preserving sits in the 2-digit Wood Preserving 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 2491 - Wood Preserving

For business marketing and targeting, US SIC Codes have been extended to provide more specific classifications within US-SIC 2491 - Wood Preserving. Extended US SIC Codes are being continuously updated to reflect the current business environment.

6 Digit SIC Codes

  • 249101 Lumber-treating
  • 249102 Creosote (manufacturers)

8 Digit SIC Codes

  • 24910000 Wood preserving
  • 24910100 Poles, posts and pilings: treated wood
  • 24910101 Mine props, treated wood
  • 24910102 Piles, foundation and marine construction: treated wood
  • 24910103 Pilings, treated wood
  • 24910104 Poles and pole crossarms, treated wood
  • 24910105 Posts, treated wood
  • 24910200 Bridges and trestles, treated wood
  • 24910201 Bridges, treated wood
  • 24910202 Railroad cross bridges and switch ties, treated wood
  • 24910203 Railroad cross-ties, treated wood
  • 24910204 Trestles, treated wood
  • 24919900 Wood preserving, nec
  • 24919901 Flooring, treated wood block
  • 24919902 Millwork, treated wood
  • 24919903 Preserving (creosoting) of wood
  • 24919904 Structural lumber and timber, treated wood
  • 24919905 Vehicle lumber, treated wood
  • 24919906 Wood products, creosoted

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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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