On a handicapped accessible wall or post mounted cantilever type water fountain, the minimum clearance for knee space from finish floor to cantilever shall be ___________ inches.

The minimum clearance for knee space from the finished floor to the cantilever of a handicapped accessible wall or post mounted cantilever type water fountain is specified as 27 inches. This minimum height ensures that individuals using wheelchairs can comfortably access the fountain without obstruction. The design consideration aims to provide sufficient space to accommodate the legs of a person in a wheelchair, facilitating ease of use.

Establishing a knee clearance height of 27 inches aligns with the accessibility requirements outlined in the plumbing and building codes that govern facilities intended for public use. This standard is reflected in the ADA (Americans with Disabilities Act) guidelines and is critical in promoting inclusivity and ensuring that all individuals, regardless of mobility limitations, can access drinking water conveniently.

Other listed measurements fall short of fulfilling the requirement for accessible design, thus emphasizing the importance of adhering to the specified standard of 27 inches to enhance user experience and comply with legal mandates.