Section 604.1/Accessible Water Closet Clearances
ADA 2010 Section 604 covers accessible toilet clearances including the 60-inch clear space, grab bars, and fixture positioning.
The accessible water closet must have a clear floor space of at least 60 inches wide (measured perpendicular to the side wall) and 56 inches deep (for wall-mounted) or 59 inches deep (for floor-mounted). The water closet centerline must be 16 to 18 inches from the side wall. Grab bars are required: a 42-inch minimum bar on the side wall and a 36-inch minimum bar on the rear wall. The toilet seat height must be 17 to 19 inches above the finished floor.
Why this section exists
Toilet transfers are one of the most physically demanding activities for wheelchair users. The specific dimensions ensure that a person can position their wheelchair alongside the toilet and transfer laterally using the grab bars for support. The 16-to-18-inch centerline distance positions the toilet within arm's reach of the side grab bar. The clear floor space allows the wheelchair to be positioned for a side transfer.
What plan reviewers look for
Plan reviewers dimension the accessible toilet compartment on the enlarged restroom plan. They check the water closet centerline distance from the side wall (16-18 inches), the clear floor space dimensions (60 by 56/59 inches), grab bar lengths and positions, and that no obstructions (lavatories, dispensers, pipes) encroach into the required clearances. This is one of the most detail-intensive accessibility checks.
Common violations
Related ADA requirements
Section 603 covers general toilet and bathing room requirements. Section 604.8 covers accessible toilet compartment (stall) sizes. Section 606 covers lavatory clearances. Section 404 covers door clearances at the restroom entry.