Accessible Restroom Requirements

The basic rule is straightforward: if you provide restrooms to the public, they must be accessible. The number of accessible restrooms depends on what you have:

• Multi-stall restrooms: At least one stall must be wheelchair-accessible, and at least one must be ambulatory-accessible (narrower, with grab bars, for people who can walk but need support).
• Single-user restrooms: If you have multiple single-user restrooms grouped together, at least 50%must be accessible.
• Unisex restrooms: If you provide a unisex (single-user) restroom, it must be accessible. This is also required when existing multi-stall restrooms aren't accessible in an existing facility.

The wheelchair-accessible stall must be large enough for a person using a wheelchair to enter, close the door, transfer to the toilet, and exit. The minimum dimensions are:

The stall door on a wheelchair-accessible stall must swing outward unless the stall is large enough that the door doesn't reduce the required floor space. Self-closing hinges are allowed but the door must close slowly enough for safe use.

Grab bars are essential safety features. They help people transfer from a wheelchair to the toilet and provide support for people who have difficulty sitting and standing.

• Side wall: At least 42 inches long, starting no more than 12 inches from the back wall. It must extend at least 54 inches from the back wall.
• Rear wall: At least 36 inches long, centered behind the toilet. It extends 12 inches minimum on one side and 24 inches minimum on the other side of the toilet centerline.
• Height: Mounted between 33 and 36 inches above the finished floor.
• Strength: Must support at least 250 pounds of force.

The toilet itself has specific requirements:

• Seat height: Between 17 and 19 inches from the floor to the top of the seat. This "comfort height" makes transfers from a wheelchair much easier. Standard residential toilets are typically 15 inches — too low for ADA compliance.
• Centerline position: The center of the toilet must be 16 to 18 inches from the side wall. This ensures the grab bar is within reach during transfers.
• Flush controls: Must be operable with one hand and not require tight grasping, pinching, or twisting. Automatic flush systems always comply.

The sink (or "lavatory" in code language) must allow a person in a wheelchair to pull up underneath it:

• Rim or counter height: No more than 34 inches above the floor
• Knee clearance: At least 27 inches high and 8 inches deep under the sink for wheelchair access
• Insulated pipes: Hot water and drain pipes under the sink must be insulated or covered to prevent burns for wheelchair users whose legs may contact them
• Faucets: Must be operable with one hand without tight grasping. Lever handles, push controls, or automatic sensors all comply.