Brick and Mortar Calculator

Measure the wall, measure one brick, and say what joint you are laying. The bricks per square meter come out of that geometry: there is no standard-brick table behind this, because your pallet may not hold a standard brick.

Measurements in

Wall length

End to end, in feet or meters depending on the unit above.

Wall height

Footing to the top course, in feet or meters depending on the unit above.

Brick face length

The long side of the face you will see, off the brick in your hand. In inches, or millimeters if you switched the unit above.

Brick face height

The short side of the same face. Measure it rather than trusting the name on the pallet.

Mortar joint thickness

The joint you intend to lay, in the SAME unit as the brick face above. This is the number that moves the count most, so check the unit twice.

Result

Fill in a few more boxes and the answer will show here.

Opens your print dialog. Choose Save as PDF. Your figures stay on this device.

Loading the calculator.

This is a general measurement calculator. Confirm dimensions, product coverage and job requirements before ordering or installing materials.

Where bricks per square meter actually comes from

A brick does not occupy the space of a brick. It occupies the space of a brick plus one joint, in both directions, because every brick carries half a joint on each of its four sides. So the rectangle a brick really takes up on the wall is its face length plus the joint, times its face height plus the joint. Divide one square meter by that rectangle and you have the count. That is the whole calculation, and it is why this tool asks for the brick instead of offering a list of them.

The joint is where the money is. It is a small number sitting next to two larger ones, and it is the easiest field on any masonry page to type in the wrong unit. A ten entered where inches were wanted is a joint thicker than the brick. A three-eighths entered where millimeters were wanted is a hairline. Neither one looks wrong on screen, and both change a normal wall order by thousands of bricks. That is why the tool reads your joint back against your brick face before it says anything else.

Take your openings off, because a wall with two windows and a door is not the wall you measured. Add a waste allowance from your own experience: breakage on the pallet is real, and so are the cut closers at every return. Then order in whatever unit your supplier actually sells: pallets and straps, not loose bricks.

Keep the order beside the job. Zeus records materials against the address they were delivered to, so the next wall you price starts from a count you have already proved.

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