According to plumbing guidelines, what is the minimum height of a water closet above the finished floor?

The minimum height of a water closet above the finished floor is established to ensure comfort, accessibility, and compliance with plumbing standards. A height of 400 mm (15.75 inches) provides a balance between usability for most users and practicality in design. This standard height is intended to accommodate a wide range of individuals, promoting ease of use while also aligning with building codes that enhance safety and functionality.

In contrast, other height options may either be too low, potentially causing discomfort or issues for individuals with mobility challenges, or too high, which can make use difficult for shorter users. By selecting a height of 400 mm, the guidelines ensure that the fixture is accessible and comfortable for the majority of people. Such standards also take into account ergonomics and human factors to promote inclusivity in design, particularly for public facilities.