The stability of this kind of racking system is weak among all kinds of racks. Therefore, the racks should not be too high, generally within 9m. In addition, the system needs to be equipped with a tensioning device. This kind of system has densely arranged shelves and extremely high space utilization, which is almost twice that of conventional pallet shelves. It is suitable for storing the same type of goods with small variety and large displacement. Goods can be stored and taken out from the same side (first in, last out). It can also be stored in one side and taken out from the other side (first in, first out). It is mostly used in dairy, beverage and other food industries. It is also more common in cold storage.