Concrete Block Calculator
Build a masonry takeoff from wall dimensions, openings, block face size, waste, mortar coverage and material prices.
What Is the Concrete Block Calculator?
The Concrete Block Calculator prepares a block-wall material worksheet rather than estimating from area alone. It separates gross and net wall area, supports custom block face dimensions, removes doors and windows, adds an editable waste allowance and converts the order into block count, mortar bags and material cost.
How It Works
Measure the wall length and height, subtract the combined area of openings, then enter the visible width and height of the block including the joint layout you plan to use. Match mortar coverage and prices to the actual products before ordering.
When to Use It
Use it for preliminary CMU, cinder-block, landscape-block and small masonry wall takeoffs. Bond pattern, cuts, reinforcement, grout cells, lintels, footing design and code requirements still need a project-specific plan.
Frequently Asked Questions
- Should The Block Size Include The Mortar Joint?
- Use the nominal module or the actual block plus planned joint when calculating wall coverage. Product dimensions alone can understate coverage spacing.
- Does This Size The Footing Or Reinforcement?
- No. It estimates block and mortar quantities only; structural design, reinforcing steel, grout and footing requirements depend on the wall and local code.
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