Square measuring tool for tape measure by Jmulalley

Last crawled date: 4 years, 7 months ago

The best way to check for square is to measure opposing corners for equal distance. Using a tape measure is the common method but the tape will often not stay on the corner well. This will hold the tape measure in place with less tension required.
Update
two object where off platform by 1mm. Corrected and uploaded level version.