Money and merchandise are lost every time van freight gets damaged from shifting, colliding, and breaking up during transit. The cause is often the start and stop bouncing and turning of trucks. When double-stacked in trailers, palletized goods can have a relatively high center of gravity. In most cases, the pallets do not fit snugly together, leaving plenty of space for them to shift in transit. Even low-density products, like empty aluminum cans, can be damaged when vertical movement creates enough energy to damage the product if it’s not stabilized.