Tommy Mac Discussions › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › How do measure to see if something is square? › Back To The Time When The Greeks Ruled …
July 21, 2000 at 3:20 pm #94327
Take a piece of nylon string and run it tip-to-‘wherever’ on corners that are diagonal to each other. Cut to size. Take the cut piece of string and ‘measure’ the opposite diagonal corners. Depending on how short or long the string is, you’ll get an idea of how much the walls are out-of-square.