What is the required minimum ceiling height over bathroom plumbing fixtures?

The required minimum ceiling height over bathroom plumbing fixtures is set to ensure adequate space for users and to facilitate maintenance of the fixtures. A height of 6 feet 8 inches is specified because it provides enough clearance for standing occupants while using the facilities, and it complies with safety and accessibility standards that promote comfort and accessibility in bathrooms. This height also helps to avoid any cramped feeling in the space, promoting better airflow and lighting around the fixtures. In comparison, other proposed heights may not be universally applicable across various building codes, making 6 feet 8 inches the widely accepted standard for residential and commercial bathrooms.