Masonry calculators & guides
Free masonry tools and plain-English guides for United States — each gives the answer fast and shows the working behind it.
About masonry calculations
Masonry is a counting trade before it is a laying one. Brick, block and stone come in fixed sizes and go up in regular courses, so the first question on any wall is always the same: how many units does it take to cover this area, once the mortar joints between them are allowed for? Get the count wrong and you either run short mid-course — with the next delivery a different shade — or you pay for pallets you have to send back.
The masonry tools here turn a wall's dimensions into a unit count, building the mortar joint into the arithmetic the way it sits in the wall, and adding a waste allowance you can see and change. They work in feet or metres and in the standard brick sizes each country uses, because a US modular brick, a UK 215 mm brick and an Australian 230 mm brick give genuinely different bricks-per-area figures.
Using the results
Treat the unit count as a shopping figure, not a guarantee. Order the whole job — including the waste margin — in one delivery so the colour matches across the wall, keep a few spares for later repairs, and confirm the brick or block size against what your supplier actually stocks. The count here tells you how much to buy; the footing underneath, the mortar mix, the bond pattern and any reinforcement or damp-proofing are the parts that decide whether the wall stands and lasts, so plan those against the rules in force where you build.