A container assembly may include a container having a side wall defining and circumscribing a container interior, a first frame extending from and about the side wall and defining an outer terminal portion sized and configured to abut a door about an opening formed therein, a second frame defining an outer terminal portion sized and configured to abut the door about the opening and an inner terminal portion sized and configured to extend over at least a portion of the opening about a periphery of the opening, and at least a first fixation member to secure the first frame to the second frame with the container extending into the opening and with a portion of the door adjacent to the opening positioned between the outer terminal portions of the first and second frames to clamp the container assembly to the door about the opening.