A partitioned container having a plurality of individual compartments formed from mated slotted interior panels. One or more exterior panels surround the mated interior panels to form the outside of the partitioned container. The interior panels may include folding tab sections and partitioning sections, and the panels may be mated with one another through a self-locking mechanism. The various panels may be folded about fold lines to permit the assembly to be folded into a substantially flat state.