Quick answer: Cubic metres and yards from your slab dimensions, plus installed cost. A 20×10 ft driveway slab at 6 inches needs 3.06 m³ and runs about $2,220–3,690.
Enter length, width and thickness and get the volume both ways — cubic yards and the cubic metres you'll actually order — plus an installed price with the site work that real pours include: rebar, gravel base, tear-out, pump truck. The default 20×10 driveway slab at 6 inches needs 3.06 m³ with waste included and runs about $2,220–3,690 poured, finished, reinforced and based. Finish upgrades from broom to stamped are priced honestly too.
Length × width × thickness, then 8% waste because trucks and wheelbarrows spill and subgrades are never perfectly flat. A 200 sq ft slab at 6 inches is 3.70 cubic yards — 2.83 m³, ordered as about 3.06 m³. Ready-mix is sold by the cubic metre in Canada, and short-load fees under ~3 m³ are standard.
Around $8–13 per square foot for a 4-inch broom-finished slab with forming and finishing, climbing about $1–1.60 per square foot per extra inch of depth. Decorative finishes multiply it: exposed aggregate about 25% more, stamped about 60% more. Material alone is only a third of the number — forming, placing and finishing are the job.
For anything a vehicle touches, yes — the compacted gravel base drains and supports, and reinforcement holds the slab together when hairline cracks come (they always come). Skipping the base to save $0.75–1.50 a square foot is how driveways heave in their first Ontario winter.
Every calculator runs from one config: your name, your colours, your prices. Brand it below, open any tool from the catalogue, and finish a quote — the lead lands in the table here the moment the estimate unlocks. On your own site the widget works exactly like this.
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| Tenants signed | Avg. rent | Monthly | Annual |
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