Ada Exterior Door Threshold Detail
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What makes a door threshold ada compliant.
Ada exterior door threshold detail. However a vertical height of up to is allowed if a transition ramp is applied. 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. Changes in level up to 1 4 inch can be vertical and do not need an edge treatment. In order to be ada compliant existing door thresholds are required to have a vertical height no greater than.
The ada requirements for thresholds are. The edge must be beveled 1 2 maximum above a height of 1 4. If the door threshold is higher than then an associated level landing is required. An ada compliant door sill that doesn t leak.
Threshold assemblies components variables use a variable to accommodate offsets from 1 2 to 1 1 4. At deeper recesses the maneuvering clearance must be sized for a forward approach and located 8 maximum from the face of the door. These meet the 1 8 maximum slope allowance ada for existing buildings. Thresholds 404 2 5 the height of thresholds is limited to 1 2 in new construction.