Abstract: A container for supporting a workpiece, the workpiece including a chamfer around upper and lower edges of the workpiece is disclosed. The container includes a door and a shell capable of coupling with the door to define an isolated environment within the container. The container includes a workpiece support mounted to the door. The workpiece support includes a support post. The support post is configured to support a workpiece at a corner of the workpiece. The support post includes a first sloping wall. A second sloping wall is at a bottom of the first sloping wall. The second sloping side wall is configured to support a workpiece. The first sloping wall and the second sloping wall are oriented with different non-zero slopes.