Brick and CMU Count

Unit count from wall area, unit size, and mortar joint.

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Formula and source

Brick count = wall_area / brick_face_area × layer factor. CMU count = wall_area / cmu_face_area. Allow 5% breakage waste.

BIA (Brick Industry Association) Technical Notes by name; NCMA TEK manuals by name.

Audience

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Posture

Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.