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Storage Location Data


As specialists in warehouse identification and marking products, ASG Services have many years experience in handling warehouse storage data. We work with the data customers provide and where needed can help with the creation of data.

Customers often generate data files from warehouse management software (WMS) or forward those supplied their WMS providers, consultants, etc., following detailed facility survey.

We also receive building layout and rack drawings of their distribution centers and storage facilities showing enough details for us to establish location referencing logic. Using these details and with confirmation from the customer, we are able to build storage location data files which represent all locations required, corresponding to the various rack and shelf labels, barcode signs, floor labels, etc., so we can provide a full turnkey solution.

Location data can be very complex and extensive, for this reason ASG Services always works closely with the customer who checks and signs off the data along with product designs, before production begins.


Warehouse Layout Drawing

Warehouse Location Data


How to Build a Warehouse Location Data File


This layout example is to help you build and present your rack label data. We have suggested the following headings, to help with your data gathering and our data manipulation prior to production.  Your data maybe configured differently, this is only suggestive.


Pallet Rack Label Data



Download a data file template for your warehouse labels:

Barcode Sign Data File Rack Label Data File.

Barcode Sign Data File Barcode Sign Data File.

Floor Label Data File Floor Label Data File.

LPN Data File LPN Data File.

Location Label Data File General Barcode Label Data.


The key location data headings are:

Aisle:  The aisle reference could be single or multi digit, we used A1, as the first aisle in the row. Aisle Characters

Racking Aisle


Bay:  The bay relates to the space between the rack frame legs, where beams stretch across to create shelves. Bay Characters

Rack Bay


Level:  The level number or letter (Number in our example), relates to the storage level. This could be the floor, or the first beam. We have shown 6 levels here, but yours maybe less or greater. Level Characters

Racking Level


Location:  Within each bay, the slot or location position across the beam, may be 1 to 2, or 3 where pallets are stored, or 01 to 12 or more if small parts are stored on shelves. Location Character

Slot Location


Barcode:  The barcode content is often all of the location references combined, in a continuous string, some customers use separation symbols, but we have shown the most common continuous method. Barcode Set

Rack Barcode


Human Readable:  This information is generally the same as the barcode information, a combination of the location data. However, customers often add symbols and spaces to make the information easier to read by warehouse operatives.

Human Readable


Arrow Direction:  Where arrows are required, adding a simple Up, Down, Left or Right is adequate. We have shown Up and Down as these are to be used on the beams. Arrow Set

Rack Barcode


Color Code:  A significant benefit to location identification is in adding a color to denote levels. A simple word reference is best here and where a particular color reference is required, these should be listed separately. Red, #E04116 for example, added to a separate cell at the top of the page, works best. Printed color match can not be guaranteed. Color Set

Color Block Indicators

Level Color Code


Barcode Type:  Enter the barcode symbology you require, this could be one of many types, so if you are not sure, please ask your system provider, or we can recommend the most common linear or 2D used in the industry. 2D Rack Label

Human Readable


Quantity: If the formula is updated to cover the full list you create, the quantity of labels will be shown which you can cross reference with other location count information. It helps you ensure all are included and shows us what is needed at a glance.

Location Quantity


Tabs: At the bottom of the page, we have show a main and a ‘Type 2’ tab. You may name it differently to related to the location type, label size, project reference, etc. Having separate tabs helps us see which data is for which label and helps you check all needed are included.

Label Type Tabs



Data integrity is the key to any good project and regardless of how we receive it, we will do everything we can to check its as expected and needed, however our production ready versions will not be proofed in the production process, only the latest version we receive from you. Therefore it is critical that you ensure we have the latest available.


Our pricing includes a degree of data manipulation time, however if the data is too complex or problematic, we will inform you of additional time needed and to be charged for. We will also advise of the difficulties so you can reissues the data to avoid those charges.

Please feel free to speak to us about your data, it is very much in our interests to ensure your data is good to go and that we can process the order swiftly, so we are more than happy to help. You can find contact details here.


Barcode Data File

Our happy clients
XPO Logistics
Williams Sonoma
US Foods
Tiffany & Co
Sherwin Williams
Saddle Creek
Ryder Logistics
Rooms to Go
Rolls Royce
Rite Aid
Proctor & Gamble
Newell Brands
Nestle Purina
Mercedes Benz
Marriott Bonvoy
Lockheed Martin
Kuehne Nagel
Kimberly Clark
Keurig Dr Pepper
Johnson Controls
John Deere
Hormel Foods
Hobby Lobby
HD Supply
Harbor Freight
DSC Logistics
Dicks Sporting Goods
DB Schenker
Coca Cola
Best Buy
Bass Pro Shops
Anheuser Busch
Ace Hardware
Frequently asked questions
  • Can I have check digits?

    Yes, these are a common request from our customers looking for pick accuracy improvements.

  • Which barcode is best?

    The barcode you choose to use is dependent on your location or product reference data requirements.

    Although we are able to produce almost any barcode type you require, Code 128 is by far the most requested by the storage and logistics industry. This is impart due to the range of characters which can be used (128), being all digits, characters and punctuation and because of its data to size percentage, lots of data can be stored in this narrow width barcode.

    Code 39 is the next most popular, which is less useful in terms of characters it can encode, but it is great for its simplicity and ease of scanning capabilities. This is often used with operations handling product specific references and a need to work quickly.

    More recently we have been asked for DataMatrix and QR Codes which can contain huge amounts of data compared to linear barcodes.

  • What are check digits?

    They are ‘digits’ to be double ‘checked’ against the warehouse management system (WMS) records. Once the operative has arrived at the pallet or shelf location, they are asked by the system to provide the ‘check-digit’ information which ensures it matches that on the pick sheet or terminal. If their is a match, it is further confirmation they have found the correct location or product and they are able to proceed with the item pick.  If it is a failed match, the operative is prevented from completing the pick task, and so knows to look again for the correct storage location.

    Check digits are often provided by the warehouse management system, as randomized characters forming an addition to the location code. Most barcodes include a check digit within the symbology, calculated by other characters which form that barcode. In a storage environment, the check digit is typically a separate feature.

    Below, you can see the user check digit presented as characters with a black background on a warehouse rack label and a barcode location sign. The operator reads the location reference, scans the barcode and enters the check digit.

    Check Digit on Warehouse Label Check Digit on Warehouse Sign

  • I know the location references I want to use but don’t have a file containing them, can you help?

    We can create one from scratch if needed, there is a cost for this but we keep it low to ensure it is a cost effective alternative.

Have questions?

Why not email with your questions and any data information for us to consider with the response?

Want to talk?

We are here to help, call us on (877) 447-9798 and ask the questions to help you progress your project.

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