Push Back racking is a unique storage design that is both versatile and functional and reduces picking times for applications requiring large amounts of pallet faces. It is a high-density type of pallet storage system that offers more selectivity when it is compared to a drive-in rack system. This type of system stores and retrieves pallets from the same aisle in a last-in, first-out order, making push-back rack ideally suited to operations that maintain a large quantity of multiple SKUs (stock keeping units).