Abstract: A collapsible rectangular container includes a container body having a pair of opposed solid side walls, a pair of opposed foldable side walls hingedly connected to the pair of solid side walls and a base end wall and a top end wall removably and slidably connected to ends of the pairs of solid and foldable side walls when the container body is in an erected position. The base and top end walls are removable from the ends of the container body to permit the body to be collapsed into a flat configuration by folding the side walls inwardly when the base and top end walls are removed. The end walls are slidably received on one of the solid side walls when the container body is in a collapsed position. When the containers are collapsed and/or erected, the containers interlock for shipment.