For the CRL Matte Black Wall Mount Top Fitting, it’s designed to secure the top of a glass door to a wall or header. If your door is hinged at the floor pivot, you normally don’t run a direct extension all the way up to the ceiling. Instead, CRL offers header systems and stabilizer bars that connect the top of the door to a fixed panel or to the wall/ceiling for rigidity. The CRL Matte Black Wall Mount Top Fitting is for anchoring at the top, but if you want a connection from the door to the ceiling, you’ll need a support bar or header system, not just the fitting alone.