Number of Blocks in a Wall

This formula provides an estimate of the number of blocks/bricks required based on the dimensions of the wall and the size of the individual blocks.

Number of Blocks in a Wall formula
$n \;=\; \dfrac{ W_l \cdot W_h }{ \dfrac{ B_l }{ t } \cdot \dfrac{ B_h }{ t } }$
Symbol	English	Metric
$n$ = Number of Blocks	$dimensionless$	$dimensionless$
$W_l$ = Wall Length	$ft$	$m$
$W_h$ = Wall Height	$ft$	$m$
$B_l$ = Block/Bdrick Length (Individual Block)	$in$	$mm$
$t$ = Thickness of Mortar Joint	$in$	$mm$
$B_h$ = Block/Brick Height (Individual Block)	$in$	$mm$

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