I'd like to hear some tips from others how they determine whether a window will meet minimum egress requirements. Window measurements in SoftPlan are typically frame size, not clear open area. Different manufacturers' windows of the same frame size will have differing clear open dimensions, depending on thickness of frame, style of opening hardware, etc. Do some manufacturers provide calculators for their various models, and the frame size just needs entering to determine if it meets egress? Or are there other simple methods?