Free tool
Squaring calculator
The diagonal your layout should measure to be perfectly square.
Diagonal20 ft
Type each side as you measured it (e.g. 16 ft 3 3/8 in). Measure corner to corner both ways — when both diagonals match this (to 1/2″), the layout is square.
Tired of doing the math by hand?
Text the job to Booxt and it prices the whole estimate — phase by phase, in your numbers — in about 90 seconds, then emails it to your customer to sign.
Text it — see it workFree, no signup — text (329) 888-5488. Or start the free week — flat $99/mo.
One flat price · no contract · cancel anytime