With drive-in and drive-through racking, load units are stored on the racking depth one after the other on two continuous shelves.
A loading/unloading cycle per racking field from the top to the bottom (or the other way round) must be observed during depositing and retrieval.
The trucks can drive into the racking lanes. With drive-in racking, rack servicing is only possible from one side (pFO method). With drive-through racking in contrast, depositing can be carried out from one side and at the same time retrieval from the other side (FIFO method). Compared with drive-in racking, throughput is therefore higher with drive-through racking.