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ADAAG Manual

Note: This document, portion of document or referenced document was published prior to the 2010 ADA Standards, and all or part of this information may only apply to Safe Harbored elements.

Platform Size and Surface

To be part of an accessible route, lift platforms must provide the amount of clear space required for wheelchairs in ADAAG 4.2.4. The minimum dimensions are based on the approach. Where entry and exit are on the narrow dimension, the space must be at least 36 inches wide and at least 48 inches long. Where entry and exit are at a right angle to each other, the space must be at least 60 inches long so that maneuvering room for the necessary turn is provided. Platform surfaces must be firm, stable, and slip-resistant as required in 4.5. In addition, changes in level between ¼ to ½ inch must be beveled with a slope 1:2 maximum; changes in level more than ½ inch must be treated as a ramp.

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