Basic information for EGRESS WINDOWS

The minimum width of opening is 20 inches.

The minimum height is of opening is 24 inches.

The sill height must be 44 inches or less from interior floor to top of window sill.

The window must have 5.7 sq. ft total of opening or more. (5 SQ. FT. FOR GROUND FLOOR)

In addition if any part of the window is below grade a suitable sized egress window well must be provided. This will normally require drilling into the basement wall to install concrete anchors. Be sure to use a code compliant window well. If the window well will be deeper than 44" from vertical grade, a code compliant ladder will need to be installed. Ladders or rungs need an inside width of at least 12 inches, and need to project at >3 inches from the wall,  spaced not more the 18 inches apart. Many of the preformed window wells are made with integral code compliant Covers, if any are not allowed to lock  and must be easily removable by a child. Usually they are made of lightweight clear plastic. These 3 photos from the web show how they can be done.