Sliding Door Threshold Height

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.

Sliding door threshold height.

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. Generally the dimensions equate to a standard 3 ft. 37 in x 4 625 in wood door threshold install with screws item 130223 model 45837oaksl45837oaksl. In width and 78 in.

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. Any other exterior door has a threshold height limited to 7 inches. 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.

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. If it s an escape door instead of an egress window. 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. 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.

There are more specifics outlined in the code including from where to take these measurements.