Estimating Concrete Blocks for a Wall: CMU, Cinder Block & Mortar Quantities
Concrete masonry units (CMU) — commonly called cinder blocks or concrete blocks — are specified by nominal face dimensions. This guide covers block count, mortar quantity, and grout volume for standard 8×8×16, 8×4×16, and 6×8×16 CMU walls — with worked examples and direct links to the block calculators.