Instant Ottawa Estimate

Interlock project cost calculator

Pick the project type, set the size, and choose a finish — the estimate updates instantly using verified Ottawa market data.

Build Your Project

Choose the project type, set the area, and pick a finish level. Your estimate updates instantly.

1. Select Project Type

Driveway $20–$35/sq ft Patio $18–$36/sq ft Walkway $20–$30/sq ft Extension $18–$30/sq ft Repair $1,500–$5,000 flat Backyard $18,000–$62,000 package

2. Project Size

Area 400 sq ft

3. Material

Standard Concrete pavers Premium Designer pavers Luxury Natural stone

Your Ottawa estimate

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Included in this estimate

Concrete or designer pavers (per selected material)
Granular A base, compacted in lifts
Polymeric sand on every joint
Edge restraint, full perimeter
Site cleanup + final walkthrough

Might add to your final quote

Sod or topsoil removal beyond ~6 inches deep
Asphalt or concrete demolition + removal
Drainage repairs (weeping tile, French drain, regrading)
Retaining walls or steps beyond perimeter
Excavation through clay, rock, or root mat
Permit fees (rare; some Ottawa neighbourhoods)

What affects your interlock cost

Site grading

Slope, drainage, and base preparation impact labor hours.

Paver choice

Concrete, designer, or natural stone affect material cost.

Edge restraints

Proper restraints prevent shifting over Ottawa winters.

Access

Tight access and excavation removal add to project time.