Deck Installation Cost in Canada: 2026 Price Guide by Material
2026 CAD pricing for building a deck in Canada: pressure-treated wood vs. composite decking, cost per square foot, permits, and regional price differences.
Decks are one of the most requested outdoor projects across Canada, especially as homeowners look to extend their living space through the warmer months. Costs vary significantly based on material choice and deck complexity.
Deck cost by material (installed, per square foot)
- Pressure-treated wood: $25–$40/sq ft
- Cedar: $35–$55/sq ft
- Composite decking (e.g., Trex-style): $45–$70/sq ft
- PVC decking: $55–$80/sq ft
A standard 300 sq ft deck typically runs $8,000–$14,000 in pressure-treated wood, or $15,000–$21,000 in composite, including railings and standard footings.
What affects the price
- Height off the ground — second-storey or elevated decks require additional structural support and railings, adding 15–30% to cost
- Railings — glass or metal cable railings run $80–$180 per linear foot versus $40–$70 for standard wood or composite railing
- Footings — frost depth requirements in Canada mean footings typically need to go 4–6 feet deep in most regions, which is more labour-intensive than in milder climates
- Stairs and multi-level design — each additional level or staircase adds $1,500–$4,000
Permits
Most Canadian municipalities require a permit for any deck attached to the house or elevated more than about 24 inches off grade — rules vary by province and municipality, so this is always worth confirming locally. Permit fees typically run $75–$350, and skipping this step can create problems at resale or with insurance if there's ever a structural issue.
Regional pricing
Deck-building labour in Toronto, Vancouver, and Calgary tends to run above the national average, largely due to higher framing labour costs and, in BC and Ontario, higher lumber transport costs. Quebec and Atlantic Canada markets are often somewhat more affordable for comparable wood decks, though composite material pricing is fairly consistent nationwide since it's typically sourced from the same handful of manufacturers.
Getting a proper deck quote
A solid deck quote should specify footing depth and spacing, joist material and spacing, decking material and fastening method, and railing type — not just a total square footage price. Contractors using quoting software for carpenters and builders can put this together with accurate material takeoffs directly from a site visit.