October 2023: Rear wall grab bars exception

Posted on - Monday, October 2nd, 2023

Rear wall grab bar

In the ADA Standards, Texas Accessibility Standards A117.1 the rear wall grab bar is required to be a minimum 36″. It should be mounted in relation to the CENTERLINE OF THE TOILET as shown in the figure below:

604.5.2 Rear Wall. The rear wall grab bar shall be 36 inches (915 mm) long minimum and extend from the centerline of the water closet 12 inches (305 mm) minimum on one side and 24 inches (610 mm) minimum on the other side.

There are some exceptions. One of them is for when the flush valve interferes with the location. This could be if there is a bed pan cleaner at hospital paitent rooms, or at children’s toilet when the flush valve is required to be higher.


2. Where an administrative authority requires flush controls for flush valves to be located in a position that conflicts with the location of the rear grab bar, then the rear grab bar shall be permitted to be split or shifted to the open side of the toilet area.

The exception, though, can ONLY be taken IF there is an administrative authority that requires the flush control to be in a specific location. Therefore it is not IF we specifiy a toilet with a flush valve which interferes, or if the contractor locates them in the wrong place. There must be a reason that would make it technically infeasible to achieve the required mounting location.

This is rear wall grab bar was allowed to be split


This is rear wall grab bar was allowed to be shifted

ADA classes

October 19th Gannet Flemming is hosting a course called: Designing for All: A Conversation Around the Principles of Inclusive Architecture and Accessibility.

Here is the link to register