Ada Door Threshold Height

Changes in level up to 1 4 inch can be vertical and do not need an edge treatment.

Ada door threshold height.

Additionally the grade of the threshold may not exceed 2 percent in any direction. Any door threshold higher than in vertical height requires a level landing. Thresholds at doorways shall not exceed 3 4 in 19 mm in height for exterior sliding doors or 1 2 in 13 mm for other types of doors. Doors and gates in series.

The ada requirements for thresholds are. This is especially the case in old doors such as those. Closing speed if a door is equipped with an automatic closing device. While some standard door thresholds particularly modern thresholds are designed to adhere to ada standards this is hardly the norm.

These requirements apply to all types of doors required to comply including sliding doors. Thresholds if provided at a doorway must not exceed 3 4 inch in height for exterior sliding doors or 1 2 inch for other types of doors. Additionally many thresholds fall notably short of the standards. A maximum height of 3 4 is permitted for existing or altered thresholds if they have a beveled edge on each side with a slope not steeper than 1 2.

Door thresholds can be modified with a transition ramp up to in vertical height. Door thresholds that have a vertical height of or less are ada compliant.