What is the price difference between a wood-frame and steel-frame garage in New Brunswick?

A wood-frame garage in New Brunswick typically costs 15 to 30 percent less than a comparable steel-frame (pre-engineered metal building) garage, though the gap narrows significantly once you factor in insulation, interior finishing, and long-term maintenance. For a standard two-car garage (24x24), a wood-frame build runs $40,000 to $70,000, while a steel-frame building of the same size costs $50,000 to $80,000 fully installed with a concrete slab foundation.

The cost comparison is not as straightforward as it first appears, because wood-frame and steel-frame garages are fundamentally different construction systems with different strengths, weaknesses, and total lifecycle costs.

Wood-frame garages use SPF dimensional lumber for walls, engineered trusses for the roof, and conventional sheathing with your choice of exterior cladding — vinyl siding, LP SmartSide, HardiePlank, or board and batten. This is the dominant construction method for residential garages in NB, and virtually every residential contractor in the province is experienced with it. The material cost for framing a 24x24 garage runs $4,000 to $8,000 for lumber alone, depending on market conditions. Wood-frame construction is highly flexible — it is easy to add windows, change door positions, insulate walls, finish the interior with drywall, and modify the structure in the future. If you want a garage that matches your house in appearance with the same siding, trim, and roofing, wood-frame is the natural choice.

Steel-frame garages (pre-engineered metal buildings) arrive as a kit with steel columns, rafters, purlins, girts, and metal wall and roof panels. The building kit itself for a 24x24 steel garage costs $12,000 to $25,000 depending on the manufacturer, wall height, snow load rating, and included accessories. Installation adds $10,000 to $20,000 for erection, trim, doors, and sealing. The foundation is the same as a wood-frame garage — a concrete slab with footings extending below NB's 4 to 5-foot frost line — so foundation costs are comparable at $8,000 to $16,000.

Where steel-frame garages excel is in clear-span capability and structural strength. A steel building can easily span 30, 40, or even 60 feet without interior columns, making it ideal for large workshops, multi-vehicle storage, or equipment garages. Wood-frame garages beyond 24 to 28 feet wide typically require interior bearing walls or engineered beams, adding cost and reducing usable interior space. Steel buildings also handle NB's heavy snow loads exceptionally well — pre-engineered metal buildings are designed to specific snow load and wind load ratings, and their rigid-frame structure distributes loads efficiently.

However, steel-frame garages have significant drawbacks in NB's Maritime climate. Uninsulated metal buildings experience severe condensation problems — the temperature differential between the cold steel exterior and the warmer interior air causes moisture to condense on every metal surface, dripping onto vehicles, tools, and stored items. In NB's high-humidity Maritime climate, this condensation is relentless from late fall through spring. Insulating a steel building properly — typically with spray foam or vinyl-backed batt systems designed for metal buildings — adds $5,000 to $12,000 for a two-car garage, which significantly closes the cost gap with wood-frame construction.

Aesthetics and neighbourhood compatibility are another consideration. Most NB municipalities have no restrictions on steel buildings in rural or agricultural zones, but many residential subdivisions have restrictive covenants or zoning bylaws that prohibit or limit metal building exteriors. In urban areas of Moncton, Fredericton, Saint John, and their suburbs, a steel garage may require a variance or may not be permitted at all. Check your local zoning before investing in a steel building design.

For a standard residential two-car garage on a typical NB suburban lot, wood-frame construction is almost always the better value. It costs less upfront, integrates seamlessly with your house's appearance, is easier to insulate and finish, and every contractor in the province knows how to build and maintain it. Steel-frame construction makes more sense for larger garages (three-car and above), workshops, farm buildings, and equipment storage where clear-span width, structural strength, and low maintenance are priorities.

Whichever system you choose, the foundation requirements are identical — below the frost line, with a proper vapour barrier under the slab. Get three or more quotes and ensure your contractor pulls the required building permit. Find garage contractors through the New Brunswick Construction Network directory at newbrunswickconstructionnetwork.com/directory?category=general-contracting.