The minimum height of the egress window opening should be 24 inches. The minimum width of the egress window opening should be 20 inches.
Window wells must allow the egress window to fully open and operate as it was intended. If the window well height is greater than 44 inches, a ladder or steps must be installed to allow ease of escape from the window well.
All bedrooms must have one egress opening per bedroom. Each window has to have 5 square feet of clear space in order to access the egress window properly. Basement living spaces do not require an egress window if a basement bedroom exists with an egress off the basement living area.