North American Industry Classification System (NAICS) Canada 2017 Version 3.0
23 - Construction
This sector comprises establishments primarily engaged in constructing, repairing and renovating buildings and engineering works, and in subdividing and developing land. These establishments may operate on their own account or under contract to other establishments or property owners. They may produce complete projects or just parts of projects. Establishments often subcontract some or all of the work involved in a project, or work together in joint ventures. Establishments may produce new construction, or undertake repairs and renovations to existing structures.
A construction establishment may be the only establishment of an enterprise, or one of several establishments of an integrated real estate enterprise engaged in the land assembly, development, financing, building and sale of large projects.
There are substantial differences in the types of equipment, work force skills, and other inputs required by establishments in this sector. To highlight these differences and variations in the underlying production functions, this sector is divided into three subsectors. Establishments are distinguished initially between those that undertake projects that require several different construction activities (known as trades) to be performed, and establishments that specialize in one trade.
The former are classified in subsectors 236 Construction of buildings and 237 Heavy and civil engineering construction, depending upon whether they are primarily engaged in the construction of buildings or in heavy construction and civil engineering projects. Establishments in these subsectors complete projects using their own labour force, by subcontracting, usually to trade contractors, or a combination of own account and subcontracting activities. Establishments classified in these subsectors are known by a variety of designations, such as general contractor, design-builder, speculative builder, operative builder and construction manager. The designation depends on the scope of the projects they undertake, the degree of responsibility and risk that they assume, the type of structure that they produce, and whether they work on contract for an owner or on their own account.
General contractors typically work under contract to a client (the owner of the land and the building or structure to be constructed), and undertake projects that require several specialized construction activities to be performed. Often the general contractor will subcontract some of the specialized tasks to other establishments.
Design-builders are similar to general contractors. However, in a design-build project a single contract is signed with the owner that makes the contractor responsible for providing the architectural and engineering designs. The design-builder therefore is responsible for the design of the project as well as its construction.
Construction establishments that build on their own account, for sale to others, are known as speculative builders, operative builders or merchant builders. They are most often engaged in the construction of residential buildings.
Construction managers provide oversight and scheduling services to the owner, for the most part during the actual construction process. This type of service is sometimes referred to as agency construction management, to distinguish it from a type of general contracting known as at-risk construction management. On the other hand, project management, which is a turnkey-type service involving the entire project, including feasibility studies, the arranging of financing, and the management of the contract bidding and selection process, is classified in 54133 Engineering services when it is the primary activity of an establishment.
Establishments that specialize in one particular construction activity, or trade, are generally classified in subsector 238 Specialty trade contractors. However, in order to conform to the generally accepted distinctions made by construction businesses themselves, some types of specialized establishments involved in road building and civil engineering are classified in subsector 237 Heavy and civil engineering construction.
Subsector 238, Specialty trade contractors, comprises establishments engaged in trade activities generally needed in the construction of buildings and structures, such as masonry, painting, or electrical work. Specialty trade contractors usually work under contract to another construction establishment but, especially in renovation and repair construction, they may contract directly with the owner of the property.
A significant amount of construction work is performed by enterprises that are primarily engaged in some business other than construction, for these enterprises' own use, using employees and equipment of the enterprise. This activity is not included in the construction sector unless the construction work performed is the primary activity of a separate establishment of the enterprise. However, if separate establishments do exist, they are classified in the construction sector.
- maintenance of rights of way for power, communication and pipe lines; and cleaning building exteriors, after construction (See 56 Administrative and support, waste management and remediation services)
- manufacturing and installing building equipment, such as power boilers; manufacturing pre-fabricated buildings (See 31-33 Manufacturing)
- operating highways, streets and bridges (See 48-49 Transportation and warehousing)
- project management services, when it is a primary activity (See 541330 Engineering services)
238 - Specialty trade contractors
This subsector comprises establishments primarily engaged in trade activities generally needed in the construction of buildings and structures, such as masonry, painting, or electrical work. The work performed may include new work, additions, alterations, maintenance, and repairs. Specialty trade contractors usually work under contract to general contractors or operative builders to carry out a component of an overall project. However, they may contract directly with the owner of the property, especially in renovation and repair construction.
Not all specialized trade activities are classified in this subsector. In order to conform to the generally accepted distinctions made by construction businesses themselves, some types of specialized establishments involved in heavy and civil engineering construction are classified in subsector 237 Heavy and civil engineering construction.
Usually most of the work is carried out at the construction site. Some trade contractors operate shops in which they carry out job-specific prefabrication and other work. However, establishments that manufacture structural components such as steel and pre-cast concrete, or that manufacture building equipment such as boilers and elevators, are classified in sector 31-33 Manufacturing even if they install these goods themselves.
The specialized activities classified in this subsector range from the initial site preparation for new construction, through the construction of building foundations and structures, the installation of building equipment and systems, to the finishing of buildings and other structures.
- providing specialized services of a type related to heavy and civil engineering construction, and not normally performed on buildings or building-related projects (See 237 Heavy and civil engineering construction)
- retailing construction materials (See 44-45 Retail trade)
- wholesaling construction materials (See 41 Wholesale trade)
2381 - Foundation, structure, and building exterior contractors
This industry group comprises establishments primarily engaged in the specialty trades needed to complete the basic structure (i.e., foundation, frame, and shell) of buildings. The work performed may include new work, additions, alterations, maintenance, and repairs.
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.
238190 - Other foundation, structure and building exterior contractorsUS
This Canadian industry comprises establishments, not classified to any other Canadian industry, primarily engaged in foundation, structure and building exterior trades work. The work performed may include new work, additions, alterations, maintenance, and repairs.
- awning installation
- balconies, metal, installation
- cathodic protection, installation
- ornamental metal work, installation, contractors
- store fronts, metal or metal frame, installation
- welding contractors, operating at site of construction
- erecting and assembling structural parts made from steel or precast concrete (See 238120 Structural steel and precast concrete contractors)
- fireproofing buildings contractors (See 238310 Drywall and insulation contractors)
- framing buildings (See 238130 Framing contractors)
- glass and glazing work (See 238150 Glass and glazing contractors)
- installing or repairing roofs (See 238160 Roofing contractors)
- installing siding (See 238170 Siding contractors)
- masonry work (See 238140 Masonry contractors)
- poured concrete foundation and structure work (See 238110 Poured concrete foundation and structure contractors)
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