Anonymous
Post 12/26/2025 00:23     Subject: 44 inch floor to sill requirement for window.

Anonymous wrote:
Anonymous wrote:Minimum Egress Window Dimensions (R310.2)

Minimum net clear opening: 5.7 square feet
(5.0 square feet if window opens at grade-floor level)

Minimum clear opening height: 24 inches

Minimum clear opening width: 20 inches

Maximum sill height from floor: 44 inches

Note: These are net clear opening measurements—not the rough opening or frame size. A 48″x48″ window won’t automatically pass.


Lol I know a lot of houses in my neighborhood that clearly don't meet the opening measurements.


If the basement is walk out, the windows don't matter, except for any basement bedrooms