Concrete Block Calculator — Free Online Tool
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Concrete Block Calculator

Calculate exact CMU block count and mortar volume for walls

Estimation Standard: Standard concrete block (nominal size 8" × 8" × 16") accounts for approximately 1.125 blocks per square foot of wall area.
Wall & Block Parameters

Calculation Results

⚠️ Concrete block estimations include standard mortar joint allowances. Always verify door/window openings and add extra allowance for corner cuts and breakage.

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