A double barcode, sometimes called a dual barcode, simply means putting two different types of barcodes together on the same package or product.
The most common setup combines a classic linear barcode alongside a two-dimensional (2D) code, such as a QR code or Data Matrix. It lets a single product carry two sets of scannable information — one that traditional scanners can read easily, and another that holds more detailed data like batch numbers, expiry dates, serial numbers, URLs, or other product attributes.
Double barcodes work by placing two barcodes—usually one 1D and one 2D—on the same label or product surface. Each barcode contains different (or sometimes overlapping) data relevant to the product.
For example, consider a logistics provider tracking a shipment of goods with both a unique shipping ID and detailed item-level data. A single, one-dimensional barcode simply cannot hold that much information. That’s exactly the problem a double barcode solves.
In this case, dual barcodes can be printed on the outer carton label: one barcode for the shipping ID, and a QR code holding the serial numbers of multiple individual products inside the shipment. This way, the logistics team can quickly scan the label and access both the overall shipment and detailed product information at once.
To make this work, you'll need scanners that can handle both 1D and 2D codes. Common options are 2D imagers or Android barcode scanners.
Scanners read each code separately and then integrate the data into a single dataset.
Businesses use this combined data to manage inventory, trace shipments, fight counterfeiting, and engage customers.
Common dual barcode combinations include:
Such as Code 128 + QR Code or UPC + Data Matrix. This pair is the most popular, merging traditional product identifiers with modern, high-capacity data storage.
Single symbology designs that combine 1D and 2D elements in a cohesive barcode. For instance, the GS1 Composite Code links a linear component (usually carrying the GTIN) with an adjacent 2D component (MicroPDF417 or PDF417) that stores details such as lot numbers and expiration dates. You see these frequently in grocery (for fresh produce traceability) and healthcare.
Creating effective dual barcodes involves four steps:
Use label design tools that support 1D + 2D combinations. These programs allow you to design templates and pull data from Excel or ERP systems.
Follow industry requirements (e.g., GS1 for retail or healthcare). In most cases, the 1D code identifies the product (e.g., GTIN), while the 2D code carries additional details such as batch, expiry, or serial information.
Print with professional barcode printers at 300 dpi or higher to guarantee readability. For small packages or curved surfaces, adjust barcode size and spacing to maintain scannability.
iDPRT barcode printers are stable and durable, with print resolutions up to 600 dpi. They work with both direct thermal and thermal transfer printing. These printers create sharp, easy-to-scan double barcodes, including GS1, ITF-14, QR Codes, and Data Matrix, which are widely used in logistics, fresh food, retail, and healthcare.
With the free BarTender software, you can quickly design and manage dual barcode labels. iDPRT’s industrial thermal printers also connect smoothly to logistics platforms, production lines, and enterprise systems, delivering reliable performance even in high-volume environments.
Check your labels with both 1D and 2D scanners. Make sure the devices you plan to use can read them clearly and send the right data to your system.
With the right design software and a good barcode printer, it’s easy to set up double barcodes. Once in place, they help businesses work faster, keep operations secure, and make day-to-day management a lot smoother.
Print 1D and 2D barcodes together to enhance traceability, security, and efficiency.
