An adjustable shelf assembly including an elongated frame and a first shelf and a second shelf attached to the frame. The frame has a first end and a second end, and generally extends in a first plane. At least a portion of the first and second shelves extends in a second plane generally perpendicular to the first plane. The first and second shelves are separately transversely movable in the second plane relative to the frame. The shelf assembly is in an open position when the first and second shelves are transversely moved away and spaced apart from each other in the second plane, a generally vacant space is formed between the first and second shelves. The shelf assembly is in a closed position when the first and second shelves are positioned proximate to each other.