Stone, Blocks & Bricks Calculator

How to use the Stone, Blocks & Bricks Calculator

1. Choose the wall type — stone, brick, or block.
2. Enter the wall length, height, and thickness.
3. Deduct any openings such as doors and windows.
4. Review the quantity of bricks or blocks, mortar volume, and sand and cement needed.

Why use this tool

• Handles the conversion from wall area to unit count using standard brick and block sizes.
• Includes mortar calculations so you can order sand and cement alongside your masonry units.
• Supports different bond patterns and waste allowances for accurate ordering.

Masonry estimation is straightforward once you know the rate per square metre, but it catches people out when they forget to deduct openings or account for wastage from cuts. A standard UK brick (215 x 102.5 x 65mm with 10mm joints) works out at roughly 60 bricks per square metre for a half-brick wall. This calculator applies the correct rates for bricks, blocks, and natural stone, and adds mortar quantities based on joint thickness and wall type.

Part of Builder Tools Calculators — construction tools for UK tradespeople.