2013 California Standards for Accessible Design Pocket Guide
11B-608.7 Thresholds.
Thresholds in roll-in type shower compartments shall be ½ inch (12.7 mm) high maximum in accordance with Section 11B-303.
[2010 ADAS] 608.7 Thresholds. Thresholds in roll-in type shower compartments shall be ½ inch (13 mm) high maximum in accordance with 303. In transfer type shower compartments, thresholds ½ inch (13 mm) high maximum shall be beveled, rounded, or vertical.
Exception: Reserved.
[2010 ADAS] EXCEPTION: A threshold 2 inches (51 mm) high maximum shall be permitted in transfer type shower compartments in existing facilities where provision of a ½ inch (13 mm) high threshold would disturb the structural reinforcement of the floor slab.
ETA Editor's Note
The 2013 CBC requirement for thresholds at accessible showers is more restrictive than 2010 ADAS.
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