Pushback racking consists of upright frames, beams, rails, carts and more Carts are nested on the pre-designed slanting rails and the later in goods will push the first in goods along with racks depth direction When picking up goods the last in will be taken out firstly and the following goods will automatically slide down by gravity reason so to achieve the FIRST-IN-LAST-OUT (FILO) storage principle Comparing with drive-in and double-deep rack, push-back rack is more convenient to store pick up goods and utilize high efficiency of space This type of rack can be stored no more than 5 depths pallets or carts