Which plumbing fixture requires a minimum distance of 600 mm from the center of the fixture to an obstruction?

The minimum distance of 600 mm from the center of a toilet fixture to any obstruction is a standard requirement aimed at ensuring user comfort, accessibility, and safety. This distance allows adequate space for an individual to use the fixture without feeling cramped, and it also facilitates maintenance and cleaning around the toilet. Additionally, ensuring this clearance helps in emergency situations, allowing for easy access to the fixture.

While other plumbing fixtures like sinks, showers, and bathtubs may also have specific clearance requirements, they typically do not have the same stringent distance regulations as toilets. This distinction arises because toilets are often used in various ways, including those with mobility aids, making the clearance particularly crucial for effective function and user experience.