Abstract: A shelf structure for a freezer compartment of a refrigerator includes a horizontal shelf and a base removably supported by an underside of the shelf. The shelf includes downward projections received in holes formed in a top wall of the base. Each projection incudes a narrow part and a wide part disposed at a lower end of the narrow part. The base rests upon the wide parts. Each hole includes an insert portion and a locking portion. The projections are passed vertically through the insert portion and are then moved horizontally into the locking portion. A portion of an edge of the hole is elastic to enable the narrow part to enter the locking portion and then to elastically retain the narrow part therein.