Canada calculator
Deck Building Cost Calculator
Estimate the cost to build a new deck in Canada. Adjust the deck size, the decking material, whether it is ground-level or raised, and whether you add a perimeter railing and a stair run to see an itemised low–high range in Canadian dollars per square foot for your project.
How this calculator is built
Unit costs with sources
This model cites 6 sources across line-item unit costs, regional labor data, and tax references.
Regional labor adjustment
The province table applies local labor indexes only to labor-heavy line items.
Published methodology
The methodology page lists the formula, size drivers, labor model, and source links.
Estimate your project
Change the default inputs to match your scope. The breakdown updates by line item.
Deck Building Cost by province: typical ranges
Each range applies that province's labor index to the labor-share line items of the default project; materials stay at national prices. Select a province for its full local breakdown and calculator.
| Province | Typical range | Labor index | Permit |
|---|---|---|---|
| Alberta | $9,780–$16,300 | 106% | Likely |
| British Columbia | $9,530–$15,883 | 100% | Likely |
| Manitoba | $8,864–$14,773 | 84% | Likely |
| New Brunswick | $8,489–$14,148 | 75% | Likely |
| Newfoundland and Labrador | $8,864–$14,773 | 84% | Likely |
| Northwest Territories | $9,697–$16,161 | 104% | Likely |
| Nova Scotia | $8,614–$14,356 | 78% | Likely |
| Nunavut | $9,822–$16,369 | 107% | Likely |
| Ontario | $9,530–$15,883 | 100% | Likely |
| Prince Edward Island | $8,614–$14,356 | 78% | Likely |
| Quebec | $10,155–$16,925 | 115% | Likely |
| Saskatchewan | $9,238–$15,397 | 93% | Likely |
| Yukon | $9,905–$16,508 | 109% | Likely |
Common questions
How much does it cost to build a deck in Canada?
A built deck typically runs about $35–$130 CAD per square foot installed, so a mid-grade 320 sq ft cedar or entry-composite deck with railing lands around $12,000–$16,000. Pressure-treated wood is the budget option; premium capped composite with glass or aluminium railing sits at the top. Prices shown are before GST/PST/HST, which is added per-province at billing.
Is composite decking worth it over pressure-treated wood in Canada?
Composite costs more up front — often 40–50% above pressure-treated — but shrugs off Canadian freeze-thaw and needs no annual staining or sealing, which matters through long winters and short building seasons. Pressure-treated is cheapest to install but has the highest upkeep. The 'Decking material' selector scales the estimate across these tiers.
Do I need a permit to build a deck in Canada?
Most Canadian municipalities require a building permit for a new deck, and inspectors check footing depth below the frost line, ledger attachment to the house, and guard/railing height. Fees vary by municipality. Toggle 'Raised / elevated deck' and 'Include a stair run' to reflect the extra framing, footings, and stairs a raised deck needs.