The difference is as the name suggests, it allows the pallets to be stored up to 2 deep on the bay whilst being accessible to the operator on the same aisle. However the deep pallet can not be reached with a conventional forklift and needs to be fitted with telescopic forks to reach the rear of the rack from the aisle.
Push Back Pallet Racking
Nulla laoreet scelerisque tortor in fringilla sapien
Although the speed of access is reduced to the pallets this can be overturned by implementing an efficient management system of stock it takes advantage of the increased storage density allowing faster turn around times.