A box includes first and second spaced apart side walls, and first and second ends walls connected to opposite ends of the side walls. Each side wall has an elongated slot at a lower end of an inner surface thereof, and each end wall has an elongated slot at a lower end of an inner surface thereof, with the elongated slots of the side walls and the end walls all being coplanar. First and second bottom boards are inserted in the elongated slots of the side walls to form a bottom wall of the box, and a closure member is inserted into a space between the first and second bottom boards to lock the first board in the elongated slots of the side walls and the first end wall and to lock the second board in the elongated slots of the side walls and the second end wall.