Ada Door Threshold Height

Door thresholds can be modified with a transition ramp up to in vertical height.

Ada door threshold height.

Additionally many thresholds fall notably short of the standards. This is especially the case in old doors such as those. Spring hinges door spring hinges shall be adjusted so that from the open position of 70 degrees the door shall. 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.

Raised thresholds and floor level changes at accessible doorways shall be beveled with a slope no greater than 1 2 see 4 5 2. Door thresholds that have a vertical height of or less are ada compliant. Doors and gates in series. 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.

These requirements apply to all types of doors required to comply including sliding doors. While some standard door thresholds particularly modern thresholds are designed to adhere to ada standards this is hardly the norm. 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. Ada compliant door closers shall be adjusted so that from an open position of 90 degrees the time required to move the door to a position of 12 degrees from the latch is 5 seconds minimum.

Any door threshold higher than in vertical height requires a level landing. Closing speed if a door is equipped with an automatic closing device.