Drive-in racking
Drive-in racking is also called through racking or corridor racking. As the name suggests, drive-in racking is a kind of racking where forklift enters inside the racking for accessing goods, and the running lane of forklift is the storage space of goods, and the pallets are stored continuously on the support rails in the depth direction, which is the first-in, last-out type of racking.

Press-in racking
Press-in racking, also known as push-back racking, stores goods on specially manufactured pallet trolleys, which realize the self-sliding function through the low front and high rear rails with a certain slope. When storing goods, forklifts are used to store the goods on the pallet trolley from the lower end of the rail, and then forklifts push the previous pallet into a deep position with the next pallet, and so on.
The goods are also picked up from the lower end of the rail, and each time one of the goods is taken away, the remaining goods will automatically slide to the lower end of the rail under the action of gravity, so that it is convenient to continue to pick up the goods, for the first-in, last-out type of shelving.
Contrast Summary
Drive-in racks are suitable for small varieties and large volume types of goods storage, and are widely used in wholesale, cold storage and food and tobacco industries.
Push-back pallet racking is suitable for small varieties and large volume, first-in, last-out operation, and is suitable for freezers and other occasions that require more space utilization.