Abstract: A sliding door assembly for enclosing a space, such as a shower or a bath, includes an overhead track and a sliding door moveably interacting with the overhead track. The sliding door includes a panel and a support apparatus for supporting the panel. The support apparatus includes a rail extending generally vertically and connected to the panel, a bracket extending upwardly from and partially adjacent to the rail for moveably interacting with the overhead track, and a boss extending from the rail and engaging the bracket. The bracket defines a notch and the boss extends from the rail into the notch and vertically engages the bracket in the notch for vertically supporting the rail on the bracket. The boss and the bracket establish a fastener-free support to support the weight of the panel and the rail.