Smallest Egress Window Size

This makes them ideal for basement egress and for other areas where space is limited.

Smallest egress window size.

The minimum height requirement of the opening is 24 inches. It must be at least 5 7 square feet that is at least 20 inches wide by 24 inches high with an opening no higher than 44 inches from the floor. The minimum egress window opening height is 24 high. The clear opening of the egress window is designed for access out of the house in an emergency situation.

The nbcc details specific size requirements as. What is the minimum size for egress windows. The overall size of this smallest egress casement window is 8 sq. Ringer windows casement window systems.

Windows referred to above shall provide unobstructed openings with areas not less than 0 35 m2 3 8ft2 with no dimension less than 380 mm 15 in. In accordance with the irc requirements the minimum width of the egress window opening is 20 inches. Let s have a look at the alberta building code abc 2014 criteria that all egress windows must satisfy. The minimum egress window opening is 20 wide.

Casement windows are minimally 2 4 wide by 3 4 high. Reliabilt 105 series 35 5 in x 59 5 in vinyl egress new construction white single hung window. Casement windows with hinged sashes that swing free and clear of the opening can be relatively small and still meet egress requirements. 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.

For replacement windows a minimum opening size of 5 0 square feet must be met. Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access. The window s sill must not be highers than 44 inches from the floor. The egress window must have a glass area of not less than 8 of the total floor area of room s for which it is servicing to allow the minimum amount of sufficient natural light.

Unobstructed opening of not less than 0 35 m2 3 77 sq ft in area with no dimension less than 380 mm 15 inches this window should maintain the required opening during an emergency without the need for additional support. 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. For determining egress window sizes and placement the international building code holds that every bedroom must contain at least one egress window.