Warehouse Barcode Labels: Materials, Formats and Getting It Right
A label failure in a warehouse is not just an inconvenience. When a racking label peels, fades or fails to scan, pickers miss locations, stock goes unaccounted for, and audits unravel. Warehouse barcode labels carry more operational weight than most people give them credit for – and choosing the wrong material, format or adhesive compounds the problem fast.
At Positive ID Labels, we supply barcode labels for warehouses across the UK – from ambient distribution centres and cold stores to outdoor yards and high-speed fulfilment operations. This guide covers what you need to get the specification right.
What Warehouse Barcode Labels Actually Need to Do
Before specifying a label, think about what it will face. A racking label in an ambient distribution centre has a relatively easy life – low humidity, stable temperature, minimal UV. A label in a cold store faces condensation, freezing temperatures and contact from frozen goods. A yard label must survive rain, UV and forklift traffic.
The barcode itself also matters. Warehouse barcode labels on high racking need to be readable at 2 to 4 metres by fixed or handheld scanners. The X-dimension – the width of the narrowest bar – needs to be large enough to scan reliably at that distance. Get it wrong and no material or adhesive will save you.
Barcode Formats for Warehouse Barcode Labels
The most widely used format is Code 128, which encodes alphanumeric data efficiently and is compatible with most WMS platforms. For logistics and supply chain applications, GS1-128 adds structured data using application identifiers – batch numbers, best-before dates, serial numbers and SSCC codes for pallets all use GS1-128 as standard.
SSCC labels are the standard for pallet identification in despatch and goods-in. ITF-14 appears on cartons where the barcode must scan through corrugated outer packaging. For internal tracking – bin locations, asset tags, work-in-progress – QR codes and Data Matrix encode more data in less space and scan from any orientation.
You can explore barcode formats in detail in our barcode symbologies guide and in our overviews of 1D barcodes and 2D barcodes.
Choosing Materials for Warehouse Labels
Polypropylene for Racking and Location Labels
White polypropylene is the default material for racking, shelving and location labels. Water resistant by nature, it handles condensation without bubbling or peeling and stands up to cleaning chemicals. For cold stores, a specialist acrylic freezer adhesive rated to -30°C keeps the label in place. Adding a gloss laminate gives extra scuff resistance on busy pick faces where labels are brushed by hands and totes dozens of times a day.
Paper for Pick Labels and Short-Life Applications
For pick labels, despatch labels and anything replaced frequently, semi-gloss paper is cost-effective and adequate. These labels are applied to cartons, totes or products moving through the operation rather than fixed to infrastructure, so longevity matters less than cost and compatibility with your thermal transfer printer.
Polyester for Permanent Asset Tags
When a label needs to last years rather than months – on warehouse equipment, racking uprights, machinery or vehicles – polyester is the right choice. Dimensionally stable, highly resistant to chemicals and abrasion, and available with aggressive permanent adhesives, polyester asset labels are built for the long term.
Variable Data and Warehouse Barcode Labels
Why Variable Data Is Central to the Specification
Almost every label in a warehouse contains variable data – information that changes from label to label. Batch codes, serial numbers, best-before dates, bin locations, quantity and operator IDs are all variable. That data needs to be accurate on every label, every time.
This is where print quality matters. A barcode printed at the wrong density or with a smeared element will fail at the scan point – or worse, scan incorrectly. PID produces warehouse barcode labels on our Screen UV inkjet press at 600dpi, giving high-resolution barcode images at the print speeds a warehouse operation demands.
SSCC Pallet Labels and Warehouse Barcode Label Standards
Why Warehouse Barcode Label Print Quality Is Non-Negotiable
SSCC pallet labels follow a standard layout defined by GS1, with a human-readable zone, a barcode zone and a carrier-specific data zone. They need to scan reliably at goods-in across multiple trading partners, making barcode quality non-negotiable. If you supply into major retailers, your pallet label specification will be set by your trading partner – we produce labels to those specifications directly from the data you provide.
Read more about GS1 requirements in our EAN barcodes and GS1 barcodes guide.
Outdoor, Yard and Cold Store Applications
Durable Warehouse Barcode Labels for Demanding Environments
Labels for outdoor use face UV, rain, temperature swings and sometimes forklift contact. Standard polypropylene holds up in the short term, but for long-term outdoor racking or yard location labels, a UV-stable polyester with laminate is the better choice. Reflective materials are available for locations that need to be read by vehicle-mounted scanners at distance in low light.
For cold store or outdoor yard work, call us on 01332 864895 before specifying. The right adhesive depends on application temperature as much as storage temperature – and getting that wrong is a common, avoidable mistake.
Scanning Distance: Why Label Size Matters
A barcode that scans perfectly in the office may fail on a 6-metre racking bay. Scan distance is a function of three variables: the scanner’s optics, the X-dimension of the barcode, and label contrast. For racking labels read at 2 to 4 metres with a standard handheld, an X-dimension of at least 0.5mm is generally recommended. Fixed beam scanners on conveyors may have tighter tolerances.
We produce barcode labels to specific X-dimension requirements and advise on sizing for your scan environment. This is not something to leave to chance when labels are going onto high racking that will cost time to re-label.
Getting Your Labels Specified Correctly
Every warehouse is different. Environment, scan technology, WMS format requirements and label volume all affect the right specification. What works for an ambient 3PL may be wrong for a pharmaceutical cold chain.
Call 01332 864895 or use our enquiry form and tell us what you are labelling, where, and what your system needs. We give you a fixed price – not an estimate – and in most cases you will have it within minutes. 80% of our orders leave within 5 working days. See how warehouse labelling connects to wider distribution in our retail barcode labels guide.
Frequently Asked Questions
What is the best material for warehouse racking labels? White polypropylene is the standard for racking and location labels – water resistant, dimensionally stable and compatible with most adhesives. For cold stores, pair it with a freezer-rated acrylic adhesive. For high-wear pick faces, add a gloss laminate for scuff resistance.
What barcode format should I use for warehouse location labels? Code 128 is the most common format for internal location labels and is supported by virtually all WMS platforms. For supply chain applications involving pallet or carton identification, GS1-128 or ITF-14 are the relevant standards. Your WMS provider or trading partner will usually specify the required format.
Can warehouse barcode labels be supplied pre-printed with sequential data? Yes. We produce labels with sequential barcodes, location codes, batch numbers and any other variable data fields you need. Supply your data as a CSV or structured file and we print from it directly.
How large should racking labels be for scanning at distance? For reliable scanning at 2 to 4 metres with a standard handheld scanner, most racking labels are 100mm wide or larger with an X-dimension of 0.5mm or more. Fixed beam scanners on conveyors may have different requirements – check with your scanner supplier before specifying.
Can you supply labels for cold store and freezer warehouse environments? Yes. We supply labels with acrylic freezer adhesive rated for application at -10°C and in-use temperatures to -30°C. For commercial deep-freeze environments below -30°C, a hotmelt adhesive rated to -40°C is available. Always tell us the application temperature as well as the storage temperature.
What is the minimum order quantity for warehouse labels? There is no hard minimum. Short runs with custom data can be produced on our Jetrion press using laser die cutting – useful for pilot projects, unusual formats or quick replacements. Larger ongoing volumes run on the Screen UV inkjet press for lower unit cost. Get in touch to discuss your volume and we will route you to the most cost-effective solution.
Order Your Barcode Labels From Positive ID Labels
Getting the symbology right is the first step. Positive ID Labels has manufactured barcode labels for UK businesses for over 20 years – retail, food and drink, healthcare, and logistics.
Want to see the quality before committing? We offer free samples for approved enquiries. Call 01332 864895 or complete our enquiry form. Most orders ship within 3-5 days.
Also in this series: 1D Barcodes Explained | 2D Barcodes Explained | GS1 and EAN-13: A UK Guide | View our Barcode Labels
All guides are provided in good faith for information purposes only and do not constitute legal advice. Read our Regulatory Information Disclaimer