Construction · Calculator
Mortar Calculator
Calculate the amount of mortar needed for a brick or block wall.
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Mortar Calculator
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Estimate the cubic feet or bags of mortar required for your masonry project.
Formula
Mortar = wall area × joint thickness × mortar ratioStep-by-step
- Compute number of joints
- Compute mortar volume per joint
- Sum and convert to bags
Example
20×10 ft wall = ~3.5 ft³ mortar, ~7 bags.
FAQ
How much does an 80 lb bag of mortar cover?+
Approximately 0.5 cubic feet per 80 lb bag.
What is the mortar ratio?+
A typical mix is 1 part cement to 3 parts sand.
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