Calculators · Masonry & tile

Concrete block calculator

CMU count and mortar for a block wall.

How it is worked out

wall area × 1.125 blocks per sq ft, plus waste

What it assumes

Standard 8×8×16 block shows a 8×16 face — 0.89 sq ft, so 1.125 per sq ft.
An 80 lb bag of Type S lays about a dozen block.

This is the same calculator that is in your Hub

Nothing on this page is a demo of the real thing — it runs the identical code. What a TradeForge account adds is everywhere the number then goes: saved against the job it belongs to, dropped straight onto a quote, and priced at a rate built from your own overhead instead of a guess.

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