What is the range for the distance of an ADA water closet from the wall or partition?

The correct range for the distance of an ADA-compliant water closet from the wall or partition is indeed 16"-18". This specification is designed to ensure accessibility for individuals with disabilities, allowing adequate space for maneuverability and use of grab bars.

The distance from the wall is critical in promoting a safe and functional environment for users, ensuring that they can easily transfer from a wheelchair to the toilet and back, without obstructions. Adhering to these guidelines is essential for compliance with both the American Disabilities Act and local plumbing codes, which aim to provide equality in access to facilities.

While the other ranges might seem plausible, they do not align with the standards set forth for ADA compliance, which underscores the importance of correct measures in public and accessible restrooms.