Pushback storage increases the pallet count while offering many more pick faces than traditional high-density storage systems like drive-in. Push back racking systems are available from 2 to 6 pallets deep per storage lane. A push back rack is ideal for LIFO and FIFO systems, with up to 75 percent more storage capacity than a selective rack system. Push back racking combines the self-positioning feature of flow racks with the high density of drive-in systems.