What size egress window does a bedroom need?
Min 5.7 sq ft net opening (5.0 sq ft at grade), 24 in min height, 20 in min width, sill ≤ 44 in (IRC R310).
Every sleeping room needs an emergency escape and rescue opening. The minimum net clear opening is 5.7 square feet (5.0 sq ft for openings at grade level).
The minimum net clear opening height is 24 inches and the minimum width is 20 inches, with the sill no higher than 44 inches above the floor.
Need this scoped to your jurisdiction?
Adopted edition and local amendments vary by city and county. Ask Donnie checks your jurisdiction and cites the exact adopted section.
Ask Donnie →General information based on the International Residential Code (a model code). This is AI assistance to verify — not legal advice. Confirm the adopted edition and any local amendments with your local building department (AHJ) and a licensed professional before you build.