Blockwork Calculator

Calculate block quantities and mortar for single-skin blockwork walls.

Blockwork for a 2m by 1.2m wall

For a wall measuring 2 metres by 1.2 metres, this estimate includes blocks and mortar using the default single-skin blockwork assumptions below.

  • Net wall area2.40 m²
  • Blocks needed27 blocks
  • Mortar volume0.04 m³

Results - Blockwork Calculator

  • Net wall area2.40 m²
  • Blocks needed27 blocks
  • Mortar volume0.04 m³

How this blockwork calculator works

This calculator uses wall area, a practical blocks-per-square-metre rate and a mortar allowance to estimate quantities for common single-skin blockwork.

Disclaimer

Material quantities shown are estimates for guidance only. Although typical UK wastage and compaction allowances have been included, actual requirements may vary depending on site conditions, installation methods, and material differences. Please confirm quantities with your installer or supplier before ordering. We accept no liability for inaccuracies, financial loss, or delays arising from the use of these estimates.