Push back racking is a type of pallet storage system designed to maximize warehouse space utilization. It operates on a Last-In, First-Out (LIFO) inventory retrieval system and is particularly suitable for storing bulk quantities of homogeneous products. In a push back racking system, pallets are placed on nested carts or rolling platforms, and each storage level is inclined toward the picking aisle. When a new pallet is loaded, it pushes the previously loaded pallet back one position. This dynamic storage solution allows for high-density storage without the need for aisles between each rack.