An improved palletized container construction, characterized by the provision of overlapping interlocked bottom flaps to which are secured support blocks for supporting the container in an elevated position relative to a fixed surface. More particularly, a first side bottom flap is slotted at its free extremity to define a center interlocking portion contained between a pair of outer interlocking portions. The center interlocking portion carries at least one support block that is arranged for longitudinal alignment with corresponding support blocks carried by the other side bottom wall adjacent its free corner portions. Additional rows of support blocks are carried by said side bottom flaps adjacent and parallel with their hinge lines.