Abstract: A cardboard box and/or plastic crate partition is disclosed, made up of longitudinal and lateral partition members that are substantially flat and that are substantially identical but for the different lengths for forming lateral and longitudinal partition members. The partition members each have slots that extend about half way across them. These slots in the partition members extend in one direction, receive the partition members extending in the other direction. Shoulders on the partition members of one direction overlie the slots and prevent the partitions from separating from each other.