| 23811 | Poured Concrete Foundation and Structure Contractors
This industry comprises establishments primarily engaged in pouring and finishing concrete foundations and structural elements. This industry also includes establishments performing grout and shotcrete work. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*constructing or paving streets, highways, and public sidewalks (23731, Highway, Street and Bridge Construction); *erecting and dismantling forms for poured concrete (23819, Other Foundation, Structure and Building Exterior Contractors); *concrete sealing, coating, waterproofing, or dampproofing (23839, Other Building Finishing Contractors); and *paving residential driveways, commercial parking lots, and other private parking (23899, All Other Specialty Trade Contractors). |
| 23812 | Structural Steel and Precast Concrete Contractors
This industry comprises establishments primarily engaged in: (1) erecting and assembling structural parts made from steel or precast concrete (e.g., steel beams, structural steel components, and similar products of precast concrete); and/or (2) assembling and installing other steel construction products (e.g., steel rods, bars, rebar, mesh, and cages) to reinforce poured-in-place concrete. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*pouring concrete at the construction site for building foundations or structural elements (23811, Poured Concrete Foundation and Structure Contractors). |
| 23813 | Framing Contractors
This industry comprises establishments primarily engaged in structural framing and sheathing using materials other than structural steel or concrete. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*installing structural steel framing or precast concrete framing (23812, Structural Steel and Precast Concrete Contractors); *constructing brick, block, stone foundations (23814, Masonry Contractors); and *finish carpentry (23835, Finish Carpentry Contractors). |
| 23814 | Masonry Contractors
This industry comprises establishments primarily engaged in masonry work, stone setting, brick laying, and other stone work. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*erecting the basic structure of buildings by pouring concrete (23811, Poured Concrete Foundation and Structure Contractors); *interior marble, granite and slate work (23834, Tile and Terrazzo Contractors); and *laying precast stones or bricks for patios, sidewalks, and driveways; or paving residential driveways, commercial parking lots and other private parking (23899, All Other Specialty Trade Contractors). |
| 23815 | Glass and Glazing Contractors
This industry comprises establishments primarily engaged in installing glass panes in prepared openings (i.e., glazing work) and other glass work for buildings. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*installing prefabricated window units (23835, Finish Carpentry Contractors); and *the replacement, repair, and/or tinting of automotive glass (811122, Automotive Glass Replacement Shops). |
| 23816 | Roofing Contractors
This industry comprises establishments primarily engaged in roofing. This industry also includes establishments treating roofs (i.e., spraying, painting, or coating) and installing skylights. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*installing roof trusses and sheathing attached to trusses (23813, Framing Contractors); and *installing downspouts, gutters, fascia, and soffits (23817, Siding Contractors). |
| 23817 | Siding Contractors
This industry comprises establishments primarily engaged in installing siding of wood, aluminium, vinyl or other exterior finish material (except brick, stone, stucco, or curtain wall). This industry also includes establishments installing eavestroughs, gutters and downspouts. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*installing brick, stone, or stucco building exterior finish materials (23814, Masonry Contractors); *installing curtain wall (23819, Other Foundation, Structure and Building Exterior Contractors); and *installing sheet metal duct work (23822, Plumbing, Heating and Air-Conditioning Contractors). |
| 23819 | Other Foundation, Structure and Building Exterior Contractors
This industry comprises establishments, not classified to any other industry, primarily engaged in foundation, structure and building exterior trades work. The work performed may include new work, additions, alterations, maintenance, and repairs.
Exclusion(s): Establishments primarily engaged in:
*poured concrete foundation and structure work (23811, Poured Concrete Foundation and Structure Contractors); *erecting and assembling structural parts made from steel or precast concrete (23812, Structural Steel and Precast Concrete Contractors); *framing buildings (23813, Framing Contractors); *masonry work (23814, Masonry Contractors); *glass and glazing work (23815, Glass and Glazing Contractors); *installing or repairing roofs (23816, Roofing Contractors); and *installing siding (23817, Siding Contractors). |
