Home & Renovation
Deck Cost Estimator
Estimate material and labor cost to build a deck.
Deck building costs vary dramatically by material, size, and complexity. This estimator uses square footage and material type to give you a ballpark budget range before getting contractor quotes.
Estimated Cost Range
$5184 - $7296
- sqft
- 192 sq ft
- material Cost
- $2304 - $3456
- labor Cost
- $2880 - $3840
Formula and method
Cost = Sq Ft × (Material Rate + Labor Rate)
Material cost ranges based on 2024 Canadian retail pricing. Labor estimate of $15-20/sq ft is an approximation for standard deck framing and decking installation in urban markets.
Worked examples
Small back deck
- Deck Length (ft):
- 12
- Deck Width (ft):
- 10
- Decking Material:
- Pressure Treated Wood ($5-8/sq ft material)
- Include Labor Estimate?:
- Yes
Estimated Cost Range: $2400 - $3360
Large composite deck
- Deck Length (ft):
- 20
- Deck Width (ft):
- 14
- Decking Material:
- Composite (Trex-style, $12-18/sq ft)
- Include Labor Estimate?:
- Yes
Estimated Cost Range: $7560 - $10640
Assumptions and limits
- Flat ground, standard framing
- No stairs, railing, or complex features
- 2024 material pricing ranges
This tool provides an educational estimate. Rules, rates and personal circumstances can change the answer. Review the assumptions before relying on a result. Report a correction.
Common mistakes to avoid
- Not budgeting for footings, stairs, and railing — these can add 30-50% to the base deck cost.
- Using material-only pricing for a total project estimate — professional labor typically doubles the material cost.
- Not accounting for permits — most municipalities require permits for decks over 24 inches off the ground.
Frequently asked questions
Does composite decking last longer?
Composite decking typically has a 25-30 year warranty and requires almost no maintenance (no staining, sealing). Pressure treated wood is cheaper upfront but requires annual maintenance and may last 10-15 years without it.
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