Does asphalt unit pricing differ for an Ottawa 600 sq ft driveway vs larger?

Yes, asphalt unit pricing typically decreases for larger driveways due to economies of scale, but a 600 square foot driveway sits right at the threshold where you'll start seeing better per-square-foot rates.

For a 600 square foot driveway in Ottawa, you're looking at $4.50 to $6.50 per square foot for quality asphalt installation including proper base preparation. This puts your total project cost around $2,700 to $3,900 depending on base requirements, access, and contractor selection. Smaller driveways under 400 square feet often see rates of $6.00 to $8.00 per square foot because the fixed costs (mobilization, equipment transport, minimum crew time) get spread over less area.

The pricing breaks work like this in Ottawa: Small driveways under 300 square feet carry premium pricing because paving crews still need to bring the same equipment and minimum crew for a half-day job. Your 600 square foot driveway hits the sweet spot where contractors can achieve efficiency — it's large enough to justify full equipment mobilization but not so large that material costs become the dominant factor. Driveways over 1,000 square feet often see rates drop to $3.50 to $5.00 per square foot as material purchasing power and crew efficiency really kick in.

Base preparation costs follow similar patterns. Your 600 square foot driveway needs approximately 15 to 20 tonnes of Granular B sub-base and 8 to 12 tonnes of Granular A base material (assuming standard 300mm sub-base and 150mm base depths for Ottawa's frost conditions). Aggregate suppliers offer better per-tonne pricing on larger orders, and excavation contractors achieve better hourly efficiency on mid-sized jobs compared to tiny driveways where they spend more time setting up than digging.

Access and site conditions matter more than size for some cost factors. A 600 square foot driveway with poor access (narrow gates, overhead wires, tight corners for trucks) can cost more per square foot than a larger driveway with excellent access. Ottawa's mature neighbourhoods often have challenging access that affects pricing regardless of driveway size.

Get quotes from multiple contractors because pricing strategies vary significantly. Some contractors prefer smaller residential jobs and offer competitive rates on 600 square foot driveways, while others focus on larger commercial work and price small residential jobs high to discourage them. Three quotes will show you the local market reality for your specific project size and conditions.

Quality matters more than unit price for Ottawa driveways. A contractor quoting $4.00 per square foot with proper 450mm total base depth will deliver better long-term value than one quoting $3.50 per square foot with minimal base preparation. Your 600 square foot driveway represents a significant investment — focus on proper base preparation and compaction rather than chasing the lowest per-square-foot price.