What is the minimum clearance of a handicapped accessible lavatory from finish floor to bottom of apron?

The minimum clearance from the finish floor to the bottom of the apron of a handicapped accessible lavatory is indeed 29 inches. This standard is established to ensure that users of wheelchairs or those who may have mobility impairments can comfortably access the lavatory.

The 29-inch clearance allows adequate space for the user's legs while seated, ensuring ease of access and usability. This height supports compliance with accessibility guidelines, such as the Americans with Disabilities Act (ADA), which aims to make public facilities accessible for individuals with disabilities.

Understanding this dimension is crucial for those in the field to ensure that their installations meet the requirements for accessibility, promoting an inclusive environment. The other heights listed in the options would either not provide enough space or exceed the established requirements, thus failing to meet the standard for accessible design.