Block & Brick Calculator

Estimate masonry units for a rectangular wall, allowing for openings and waste.

Project dimensions

Wall length

Wall height

Openings area

m²

Unit + joint width

Unit + joint height

Waste allowance

LIVE GEOMETRY · Block & Brick Calculator surface

LIVE ESTIMATE

Your results

Net wall area16.2 m²

Units per m²12.5

Units to buy217

Gross wall area19.2 m²

Practical guidance

Using this estimate

Enter modular dimensions including the intended mortar joint. Bond pattern, cuts and piers can increase quantities.

Measure the actual project before ordering and confirm product dimensions, pack sizes, structural requirements and local building rules with the relevant supplier or qualified professional.