Good point Dale, I would need to measure down from the top, the same distance on each side, mark that, then measure the diagonals.
Technically, if the top jam is level, and the side jams are plumb, then they should be square. But technically, and should sometimes don't get you all the way there. *GRIN* -- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: [email protected] Tel: (412) 268-9081
