To meet egress requirements these horizontally sliding windows must be at least 4 ft.
Egress window size uk.
Does not apply in all jurisdictions.
This height requirement takes it out of the running for most basement egress situations.
The square footage must be configured with a minimum height of 24 inches and minimum width of 20 inches.
Also remember that the sill can t be more than 44 above the floor so you may end up with a taller window for a head height over 6 8.
Only one window per room is generally required.
2nd floor and above.
Cill height the bottom of the openable area should be no more than 1100mm above the floor area.
See below for the general criteria for egress windows.
Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access.
This means that to meet egress window height requirements a bedroom window must be nearly 4 ft.
Clear openable area no less than 0 33m.
Width and height either of these are not to be any less than 450mm.
Irc codes for egress.
The width of the egress window must fit within the egress well.
This would mean that a window width of 20 inches would require a height of 41 inches.
There are also code requirement to consider when picking a window.
To meet egress a window must comply with all four irc requirements.
Maximum sill height above the floor 44 1st floor.
Casement windows are minimally 2 4 wide by 3 4 high.
Clear opening width 20.
Clear opening width 20 clear opening height 24 minimum clear opening sq ft 5 7 sq ft.
A minimum clear opening width must be at least 20.
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.
The international residential code irc requires a minimum opening of 5 7 square feet for egress windows.
Wide and 4 ft.