Awning Window Height From Floor

Minimum net clear opening.

Awning window height from floor.

Traditionally that height was meant to allow the placement of furniture under the sill. Similarly many windows can be set lower than the common height of 3 feet above the floor. If you are installing windows within 2 feet of a door and lower than 5 feet from the ground you need tempered glass in the windows even though these might be higher than 18 inches from the ground. Any windows in a door must have tempered glass no matter the height unless it is too small for a 3 inch ball to pass through the window.

For example a window that measures 60 in height would have an awning that has a 30 projection. A standard projection b would be approximately half the height of your window. You can choose either projection this will change the height of the awning and how far it projects out from the wall. The bottom height or sill of the window can vary within a room without affecting its visual appeal but the head heights must be uniform especially in the corners.

An exception from this requirement also remains in the 2018 irc for windows that do not open more than 4 inches or that are. The short answer is awning windows can be used for egress but there is a longer answer. This translates to 6 foot 8 inches off the floor when you have an 8 foot high ceiling or 8 feet off the floor for a 9 or 10 foot ceiling. Minimum height of opening.

Refer to the drawing. But if nothing is in front of the window lowering the sill will increase ventilation the more operable glass the greater the air flow and allow you to bring in. Regardless of style all windows must meet certain minimums which are.