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Block and brick calculator.
How many blocks or bricks and how much mortar does a wall need? Enter the wall size and openings and get quantities with an allowance.
Net area = length × height − openings · Blocks = net area × pcs/m² × (1 + allowance)
How to calculate blocks and bricks for a wall.
- 1
Measure the wall
Length × height, then subtract windows and doors. Work out each wall separately.
- 2
Number per m²
Block 25 × 50 cm: 8 pcs/m². Block 19 × 40 cm: about 12.5 pcs/m². Solid brick in a 25 cm wall: about 100 pcs/m².
- 3
Mortar
For block walls allow about 25 to 35 l of mortar per m² of wall, depending on thickness.
FAQ
How many blocks or bricks and how much mortar does a wall need? Enter the wall size and openings and get quantities with an allowance.
8 for a 25 × 50 cm block, about 12.5 for a 19 × 40 cm block per m² of wall.
About 25 to 35 litres per m² of block wall, and much less with thin-bed adhesive for aerated concrete.
In AdBooks you save blocks, mortar and bricklaying per m² as items and send the quote in 5 minutes.