Abstract: A foldable device for facilitating the stacking of adjacent pairs of pallets loaded with container arrays includes a pair of pivotally-interconnected sections. Each section includes a generally flat bottom surface adapted to rest on a respective top layer of exposed container tops, and a top surface that include surface features whose uppermost portions cooperate to define a first reference plane. Each section includes a plurality of complementary hinge components defining a pivot axis that lies in a second reference plane located between the section's bottom surface and first reference plane, and further includes detents by which to maintain the bottom surfaces of each section pair in a substantially coplanar relationship when the hinged sections are spread open. Preferably, the surface features of each section pair are complementary such that, the assembly is folded about the resulting shared pivot axis, the bottom surfaces become generally parallel-spaced to facilitate device storage.