IRC R310 Egress Window Sill Height in Maryland: Key Code Basics
What The Egress Sill Height Rule Actually Means When a basement bedroom, finished lower level, or converted bonus room needs a legal emergency exit, sill height becomes one of the first measurements that matters. The code is focused on access, and that is why sill height is measured from the finished floor to the bottom of the clear opening, not to the frame, trim, or top of the window. A window can look generous from the outside and still fail the egress test if the