Concrete Volume Calculator
Calculate exact concrete volumes for slabs, footings, driveways, paths.
⚠️ Important: Always order 5-10% extra concrete to account for waste, spillage, and uneven ground. This calculator provides estimates based on nominal dimensions. Verify measurements on-site. For structural work, consult a structural engineer. Standards: AS 3600 (Concrete Structures), AS 1379 (Concrete Supply).
Project Type
💡 Concrete Tips
- Standard Thickness: Domestic slab 100mm, Driveway 125-150mm, Garage 150mm
- Compaction: 75-100mm compacted base (roadbase/crusher dust) required
- Reinforcement: SL72 mesh for slabs, N12 bars for footings (engineer to specify)
- Concrete Grade: N25 standard, N32 driveway, N40 structural (consult engineer)
- Ordering: Suppliers typically deliver in 0.2m³ increments, minimum 0.6m³
- Curing: Keep damp for 7 days minimum, 28 days for full strength