Levels and Squares

[hausdok]

We're interested in knowing how many of you actually use a level to determine whether things are level or plumb and how many of you use a square and actually check to see whether doors or window or other things are out-of-square during an inspection.

[Smartazz]

I do however drop a marble from 2" on the kitchen floor, if it rolls, it slopes. Carry a torpedo level for ducting that looks suspicious.