In narrow aisle racking systems, the aisles are narrowed in order to use the storage volume horizontally more efficiently. Many factors are important in the selection of narrow space racks. These are the type of material to be stacked, the type of forklift to be used, the storage speed and the most important of these is the suitability of the warehouse floor. In the narrow aisle racking system, there are guide rails fixed to the edges of the aisles. The stacking method is made ready for use by means of the indactive system (electronic tracking system) laid inside the floor.

Narrow space shelves have many advantages. The first of these is that they provide fast and direct access to the stacked material. Other advantages include the ability to quickly circulate materials and maximize storage space.