Volume 27, Issue 5 (September 1999)
Instability of Stacked Pallet Loads Due to Misalignment
Double-stacked empty corrugated fiber-board boxes were conditioned in normal and tropical climates and then compression tested in aligned, laterally offset, and diagonally offset configurations to determine the effect on compression strength. The results showed that offsets caused a greater reduction in strength than humidity effects. In a separate experiment, three-high pallet loads of infant formula in two-piece plastic cans were stacked in various staggered positions to evaluate the effect of pallet offset on stack stability. It was found that factors other than the amount of offset, such as pallet strength, uneven floors, and stretch wrapping were most influential.