Calculate materials for a new driveway including sub-base, base, and surface course.
This driveway calculator estimates the materials for a new driveway – the surface layer (concrete, asphalt/tarmac, gravel or block paving), the compacted sub-base beneath it, and edging. It reports areas and volumes in metric and imperial so you can order confidently wherever you are.
| Driveway | Width |
|---|---|
| Single car | 10–12 ft (3–3.7 m) |
| Double car | 20–24 ft (6–7.3 m) |
A drive 8 m × 3 m = 24 m². A 150 mm compacted sub-base needs 24 × 0.15 = 3.6 m³ of MOT Type 1 / crusher run, plus your chosen surface on top.
A minimum of 4 inches (100 mm) for cars. For heavy vehicles or frequent use, 5–6 inches (125–150 mm) is recommended.
Yes, a compacted sub-base of 6–8 inches (150–200 mm) is essential for a stable, long-lasting driveway regardless of surface type.
A properly installed concrete driveway can last 25–50 years. Asphalt typically lasts 15–25 years and gravel needs regular top-ups every 2–5 years.
Gravel is cheapest, block paving is the most decorative, and concrete or asphalt are the most durable for vehicles. Each needs a compacted sub-base underneath.
Typically 200–250 mm to allow for a 100–150 mm sub-base plus the surface layer; soft ground may need deeper excavation.
