Wall hung water closet carriers must be attached to what?

Wall hung water closet carriers are designed to mount the toilet securely above the floor. This is essential because these systems rely on strong structural support to ensure stability and safety. To achieve this, carriers must be attached to the building's structural framework, which often includes materials like studs in a wall or other reinforced structures. Proper attachment to the structure prevents any shifting or movement when the toilet is used, eliminating the risk of damage or failure.

While they are also affixed to the wall, it is primarily the structural integrity provided by the underlying framework that ensures their effectiveness. Simply attaching to the wall or floor alone would not suffice in providing the support needed for a wall hung system. Therefore, ensuring that the carrier is connected to a robust structure is key to the proper installation and function of a wall hung water closet.