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Guide to the ADA Standards

Do basements count in determining a facility’s story count?

As defined in the Standards, a “story” pertains to those portions of buildings “designed for human occupancy included between the upper surface of a floor and upper surface of the floor or roof next above” (§106.5). A basement or other level below grade designed for human occupancy (i.e., equipped with lighting, ventilation, and means of egress) counts as a story. Basements or other levels not containing any space designed for human occupancy are not considered stories under the Standards.

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