A permanent ladder or stairwell must be present if the window well is 44.
Minimum egress window well dimensions.
Subtract 28 from dimension a to get the minimum required height of the egress window well.
Measure from the maximum grade level ground level down to the floor level of the basement.
This gives you dimension a in inches.
They also need to be relatively large to meet the minimum size requirement for egress windows needing a space 28 inches to 60 inches wide and 23 5 inches to 60 inches high.
The distance from the egress window to the back of the egress well must be at least 36 the minimum area of the egress well must be 9 square feet.
An egress window must open at least 20 inches wide and 24 inches high with a net clear open area of 5 7 feet square.
Minimum size gliding egress window gliding windows with horizontally sliding sashes that always fill half the possible window opening area also have to be big to meet egress requirements.
The horizontal area of the window well needs to be a minimum of nine square feet with a minimum horizontal projection and vertical width of 36 inches.
Therefore it s recommended that a step is built below the window to provide easy access in case of a fire.
Width x projection egress ladders and or steps.
In order to exit your home from a basement window or to accommodate rescue personnel your egress window well needs to be large enough to admit a person of any size.
The horizontal dimensions of the window well shall provide a minimum net clear area of 9 square feet 0 84 m2 with a minimum horizontal projection and width of 36 inches 914 mm.
Dimension a 28.
Egress window size needed measuring for an egress well.
In order to meet irc requirements it must provide 9 square feet of floor area ladder.
Windows can be of various total size but their free areas when open must be at least 5 7 square feet.
Ft almost twice the area of the egress casement window shown.
To ensure you install the right egress for your basement we ll break down the residential window well code requirements you ll need to abide by.
Egress window and well requirements.
The sill must be no higher than 44 inches from the ground.
The area of a window well shall not be less than 9 square feet with a horizontal length width of no less than 36 inches.
However basement windows are typically higher than 1 5m above the floor.
Egress ladders and or steps are required on window wells deeper than 44 and.
Sliding egress windows gliding or sliding egress windows slide open horizontally like sliding glass doors and must be at least 4x4 square feet to meet requirements.
The ladder or steps required by section r310 2 1 shall be permitted to encroach a maximum of 6 inches 152 m m into the required dimensions of the.
When the sill height of an egress window is located below grade common for egress windows provided for a basement a window well must be provided.
Required window wells must be at least 760mm away from the window to allow.
The overall size of this smallest double hung egress window is 14 85 sq.
