Two alternate stalls are illustrated; one alternate stall is required to be 36 inches (915 mm) in width. The other alternate stall is required to be a minimum of 48 inches (1220 mm) in width. If a wall mounted water closet is used, the depth of the stall is required to be a minimum of 66 inches (1675 mm). If a floor mounted water closet is used, the depth of the stall is required to be a minimum of 69 inches (1745 mm). The 36 inch wide stall shall have parallel grab bars on the side walls. The 48 inch minimum stall shall have a grab bar behind the water closet and one on the side wall next to the water closet. In each alternate, the centerline of the water closet is 18 inches (455 mm) from a side wall.

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