Sliding Door Threshold Height
If it s an escape door instead of an egress window.
Sliding door threshold height. In width and 78 in. Section r311 2 states the width of the clear opening of the required egress door must be at least 32 inches from the face of the door to the door stop at the jamb or the opening and the height of the opening must be a minimum of 78 inches from the door stop at the head of the opening to the top of the threshold. Any other exterior door has a threshold height limited to 7 inches. For example according to the ada sliding door thresholds must not exceed inch in height on either side for exterior sliding doors are applicable only for commercial and public properties they are an important benchmark for safety.
The landing or floor on the exterior side shall be not more than 7 3 4 inches 196 mm below the top of the threshold provided the door does not swing over the landing or floor. Landings or floors at the required egress door shall not be more than 1 1 2 inches 38 mm lower than the top of the threshold. Brite gold saddle threshold for interior doorways. When there s a difference in height between the walking surface and the threshold of a hinged or sliding door a threshold ramp is needed to make the entryway safe and convenient for all people.
Landings or finished floors at the required egress door shall be not more than 1 1 2 inches 38 mm lower than the top of the threshold. It must be side hinged and offer a clear passage of at least 32 in. R311 3 1 floor elevations at the required egress doors. There are more specifics outlined in the code including from where to take these measurements.
By definition a threshold ramp is an inclined plane a flat surface rising at an angle that creates a smooth continuous platform from one walking.