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Employer classification manual

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Rate group table
Class A: Forest products
Class B: Mining and related industries
Class C: Other primary industries
Class D: Manufacturing
Class E: Transportation and storage
Class F: Retail and Wholesale trades
Class G: Construction
Class H: Government and Related services
Class I: Other services

Rough and Framing Carpentry

Class G: Construction
Application Date
January 1, 2005
764: Homebuilding
4226-000 : Rough and Framing Carpentry
Document No.


Compulsory under Schedule 1


Business activities include structural metal and wood framing (including studs), sheathing, installing pre-fabricated metal and wood roof trusses and exterior and interior wall components (including studs), and other related carpentry work for residential construction which is 3 stories or less above grade. 

This category includes

  • boat houses, construction
  • ceiling beams, rough installation
  • framing (house, building, structure)
  • partitions, rough installation
  • prefabricated trusses and other building frame components, installation
  • roofing, rough installation
  • sheathing (house, building, structure), installation
  • stairways and railings, wooden, installation
  • wood sub-flooring, rough installation
  • docks for cottages, installation.


The fastening of pre laid wood sub-floors by use of glue, nails, and/or screws is included in this CU. Sanding of any rough edges on the sub-flooring is considered to be incidental to the fastening activity. 

The installation of non-structural interior metal or wood framing and studs (commonly referred to as "interior wall systems") for industrial, commercial and institutional construction, and for residential construction which is more than 3 stories above grade, is included in G-719-01

A structural wall, partition, or support is any such building component that is weight-bearing or contributes to the structural integrity of the building. 

All business activities carried out underground for the mining industry are considered mining activities and must be classified in the appropriate Class B - Mining CU. 

For information on classifying construction work by contract, see the section titled "Classification of Construction Activities" in The Classification Scheme, document 14-01-01, located in the Operational Policy Manual and in the Reference section of this Manual.

Cross reference

B-110-02, Gold Mines, Contracting.
B-113-02, Nickel Mines, Contracting.
B-119-16, Other Mines, Contracting.
G-748-03, Structural Steel Erection.
G-764-04, Finish Carpentry.

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