Two/three tier storage system is mainly used for storage and order picking of non-palletised goods, bins, cartons, or other storage units containing small components and for bulk storage. Two/ three tier system helps to increase storage efficiency by making full use of floor surface.
A good utilization of the warehouse heights leads to reduced order processing times as additional tier allow to set up further storage and order picking installation
stairs and/or lifts connect the walkway/aisles on different tiers.