Warehouses and warehouse racking can be found in a variety of sizes, from that suitable for a small room to giant racking systems for very large warehouses.
I’ve created an example of a simple racking system which I hope will give you an idea about how barcoded racking and storage can be set up. There are many different ways to do this and often this will depend on how you layout your stores, your type of products and the equipment your warehouse team use to move stock around.
Shelf (bin) barcodes
Often ground floor and 1st level racking are an accessible height and barcode labels are placed at the front of the shelf edge.
However the shelves above may only be accessible with ladders, fork lift trucks or cages. When this is the case you will often find the shelf (bin) barcodes positioned not at the front of the shelf but at a scannable height on the vertical bars to the side of the bin. After all if you are using a fork lift to put pallets onto the shelf you and your trusty barcode scanner will still be at ground level even if the fork is at the higher shelf height.