Abstract: A container for holding produce having a floor, four sidewalls and a cover. Two of the four sidewalls are multi-layered with a core including a plurality of interlocking panels. The interlocked panels are lockingly connected in coplanar pairs through a set of complementary locking contours. Pairs of interlocked panels overlap in a back-to-back relationship to form a "dual-lock" arrangement. The coplanar, dual-lock arrangement allows the sidewalls and floor to be tightly interlocked thereby enabling the container to resist higher loads without buckling. The cover panels protect the enclosed produce while letting in air for ventilation through a plurality of ventilation holes.