
A - Measure from the inside bottom of the main door to the bottom of the lock plate.
B - Measure from the inside bottom of the main door to the top of any locks.
C - Measure across the fly screen door from outer edge of frame to opposite outer edge of frame.
D - Measure the vertical drop from the top of the fly-screen door to the bottom where it sits on the step from outer edge of frame to opposite outer edge of frame.

