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.
Ada exterior door threshold detail.
If the door threshold is higher than then an associated level landing is required.
However a vertical height of up to is allowed if a transition ramp is applied.
In order to be ada compliant existing door thresholds are required to have a vertical height no greater than.
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What is a level landing.
The ada requirements for thresholds are.
Adaptive is an accessible threshold that delivers water rated performance fighting leaks at the source.
Changes in level up to 1 4 inch can be vertical and do not need an edge treatment.
An ada compliant door sill that doesn t leak.
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They are also used to provide a door stop and seal at the bottom of the door.
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.
These requirements apply to all types of doors required to comply including sliding doors.
Latching panic saddle thresholds.
Residential thresholds sills for pre hung openings.
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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.
Horizontal cross section n c.
Raised thresholds and floor level changes at accessible doorways shall be beveled with a slope no greater than 1 2 see 4 5 2.
Doors and gates in series.