The square footage must be configured with a minimum height of 24 inches and minimum width of 20 inches.
Egress window size uk.
See below for the general criteria for egress windows.
To meet egress a window must comply with all four irc requirements.
A minimum clear opening width must be at least 20.
Irc codes for egress.
The width of the egress window must fit within the egress well.
Cill height the bottom of the openable area should be no more than 1100mm above the floor area.
The window must have.
Window wells serving an egress window shall not be less than 9 square feet in area with a horizontal length width of no less than 36 inches.
To meet egress requirements these horizontally sliding windows must be at least 4 ft.
Only one window per room is generally required.
Clear opening width 20.
Maximum sill height above the floor 44 1st floor.
There are also code requirement to consider when picking a window.
This would mean that a window width of 20 inches would require a height of 41 inches.
For many casement windows you ll need to order egress hardware which allows the window to not only swing open but also swing away.
Wide and 4 ft.
This height requirement takes it out of the running for most basement egress situations.
This means that to meet egress window height requirements a bedroom window must be nearly 4 ft.
Does not apply in all jurisdictions.
Clear opening width 20 clear opening height 24 minimum clear opening sq ft 5 7 sq ft.
Width and height either of these are not to be any less than 450mm.
The international residential code irc requires a minimum opening of 5 7 square feet for egress windows.
Casement windows are minimally 2 4 wide by 3 4 high.
Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access.
The window should have an unobstructed openable area that is at least 0 33m and at least 450mm high and 450mm wide the route through the window may be at an angle rather than straight through.