Deck Building Cost in Ottawa (2026)
Average cost in Ottawa
$6,000 — $25,000
$30 — $85 per sq ft
Cost Breakdown
ItemizedContractor fees and installation
55%
Decking boards, joists, and posts
35%
City of Ottawa building permits
5%
Fasteners, brackets, and waste removal
5%
HST at 13%
📋What's Included
ScopeTypically Includes
- Pressure-treated lumber
- Concrete footings
- Railing system
- Stairs (1 set)
- Hardware & fasteners
- Labor
Typically Excludes
- Composite or hardwood decking
- Built-in seating or planters
- Pergola or roof
- Lighting
- Permits
Based on a standard 200 sq ft pressure-treated wood deck.
🧮Estimate Your Cost
InteractiveEstimated Cost
$6,240 — $9,360
Based on 7 sources and market data for Ottawa. Actual costs may vary depending on specific project requirements.
🏢Top Deck Build Contractors in Ottawa
Verified providersProvider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
In 2026, a standard 12x16 foot (192 sq. ft.) deck in Ottawa typically costs between $6,000 and $16,000, depending on whether you choose pressure-treated wood or premium composite materials.
Pressure-treated wood is the most affordable option, ranging from $30 to $50 per square foot installed. Composite decking costs significantly more upfront, typically between $55 and $85 per square foot, but requires much less long-term maintenance.
Yes, building permits are generally required in Ottawa for decks that are attached to the house or over 24 inches above ground. Permit fees typically range from $250 to $500 depending on the size and complexity of the project.
Labor typically accounts for 50% to 60% of the total deck building cost in Ottawa. In 2026, professional deck builders charge around $25 to $40 per square foot just for labor, depending on the design complexity.
📊Our Methodology
How we collect dataAggregated from 7+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: today. Updates run weekly. All costs in CAD.