Calculate quantities for concrete, bricks, timber, plasterboard, tiles, and paint. Our free calculator includes Australian industry-standard waste allowances to help you order the right amount for your project.
Calculate concrete volume for slabs, footings, and columns
Floor slabs, driveways, paths
Common: 0.1m (100mm) for slabs
Waste allowance: 7% (typical range: 5-10%)
Enter dimensions above to calculate Concrete quantities
Choose from six material categories: concrete, bricks/blocks, timber framing, plasterboard, tiles, or paint. Each has specific calculation modes.
Select the appropriate mode for your application. For example, concrete offers slab, footing, and column calculations with different input requirements.
Input your measurements in metres. For walls, you can add openings (doors and windows) to deduct from the total area.
Get your order quantity with waste allowance included. The breakdown shows base quantity, waste amount, and total required.
Construction projects always require more materials than the calculated base quantity. Our calculator includes industry-standard waste allowances:
You can toggle waste allowances on or off depending on your needs. Complex layouts or inexperienced installation may require additional allowance.
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