Besser Block Calculator
Work out how many besser (concrete masonry) blocks you need. Enter the wall area, the calculator returns the block count (with waste) based on a standard block size, plus an indicative cost.
How we estimate this
A standard 390×190mm besser block covers about 0.074 square metres with the mortar joint, so you need roughly 12.5 blocks per square metre of wall, plus around 10% for cuts and waste.
Pricing reviewed: November 2026.
Pricing reviewed November 2026. Indicative Australian costs, not a quote.
Understanding besser blocks in Australia
A standard 390×190mm besser block covers about 0.074 square metres with the mortar joint, so you need roughly 12.5 blocks per square metre of wall, plus around 10% for cuts and waste.
The blocks are only part of the cost, a structural besser wall usually needs steel reinforcing bar, core-filling with concrete, and mortar, all priced separately. Taller or load-bearing walls need engineering.
Frequently asked questions
How many besser blocks per square metre?
About 12.5 standard 390×190mm blocks per square metre of wall, including the mortar joint. Add around 10% for cuts and waste. Enter your wall area for a total.
What else do I need besides the blocks?
Reinforcing steel, concrete to core-fill the cells, and mortar, all separate costs. Structural or retaining besser walls also need engineering, which this does not include.
Are you a masonry / building supply?
Everyone on this page is working out what besser block costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.