How openings are handled
- Each opening row uses width x height x quantity
- All opening areas are summed and subtracted from gross wall area
- If openings exceed gross area, results are clamped and a warning is shown
DIY / Masonry
Brick and Mortar Calculator
Estimate brick count and mortar volume for a wall, with support for multiple openings. Add as many door/window entries as needed, each with width, height, and quantity.
Wall and Brick Inputs
Set your wall dimensions, brick setup, and opening list before calculating.
Openings list
Add one row per opening type. Quantity can be more than one for repeated openings.
| Opening | Width (m) | Height (m) | Qty | Remove |
|---|
Net wall area
0.00 m²
Total wall area minus all openings.
Bricks required
0
Includes waste allowance from your input.
Mortar volume
0.000 m³
Estimated wet mortar volume for the net wall section.
Cement + Sand (guide)
0 bags / 0.00 t
Approximate 1:5 mortar split (cement:sand).
Calculation notes
- Bricks per square metre are based on brick face size plus mortar joint thickness
- Mortar volume is estimated from wall volume minus brick volume
- This is a practical planning estimate and should be checked against your local method and spec