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Calkulon

How to Calculate Mortar

What is Mortar?

Mortar Coverage Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

Formula

Mortar per 100 Bricks ≈ 2.5 cubic feet (for 3/8 inch joints)

Step-by-Step Guide

  1. 1Estimate mortar based on joint thickness and brick count
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Worked Examples

Input
500 bricks, 3/8 inch joints
Result
Mortar = 500/100 × 2.5 = 12.5 cubic feet

Common Mistakes to Avoid

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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