VNA stands for “Very Narrow Aisle”. There are Material Handling Equipment’s which needs very narrow aisle, i.e. less than 2 meters. Hence more pallet positions are possible compared to other MHE’s. VNA can reach up to 12 metre high. VNA Racking is nothing but Selective Pallet Racking but compatible to VNA Equipment. This VNA equipment needs special guides. These guides may be mechanical rails or electrical wires. Mechanical guide rails are widely practiced for ease and economy. However, VNA equipment demand high level of floor accuracy.