Construction
Block Wall Calculator
Standard 8x8x16 CMU blocks plus mortar bags by wall area.
Blocks needed
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- Sq ft of wall
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- Mortar bags (70 lb)
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- With 5% waste
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FAQ
How many CMUs per square foot? +
About 1.125 standard 8x8x16 blocks per sq ft of wall face.
How much mortar? +
Roughly 3 bags of type S mortar per 100 blocks for a standard joint.
Heads up: ClutchCalcs gives you fast, accurate results — but always sanity-check critical decisions (medical, financial, structural) with a professional.
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