Interleaved 2 of 5 - Dynamsoft Barcode Reader SDK

What is a Interleaved 2 of 5?

Interleaved 2 of 5 is a higher-density numeric symbol based upon the Industrial 2 of 5 symbol. It’s a more efficient implementation of Industrial 2 of 5. Interleaved 2 of 5 allows information to be encoded in both the bars and spaces, whereas (as previously explained) Industrial 2 of 5 only encodes information in the width of the bars.

Each data character consists of five elements, either five bars or five spaces. Of these five elements, two are wide and three are narrow. The symbol is termed “interleaved” because the first numeric data is encoded in the first five bars while the second numeric data is encoded in the first five spaces that separate the first five bars. Thus the first five bars and spaces actually encode two characters. This feature allows Interleaved 2 of 5 to achieve a relatively higher density, but users must always encode an even number of numeric values.

A typical Interleaved 2 of 5 barcode appears like this:

Interleaved 2 of 5

Note that the above barcode is physically smaller than Industrial 2 of 5.

Interleaved 2 of 5

Where is a Interleaved 2 of 5 used?

Interleaved 2 of 5 is used primarily in applications such as label packaging, distribution and warehousing. Since the barcode can deal with high printing tolerances, it is good for printing on corrugated cardboard.


  • Packaging
  • Logistics

How could Dynamsoft help you with Interleaved 2 of 5?

Dynamsoft barcode reader enables you to efficiently embed high-speed and reliable barcode reading functionality in your web, desktop or mobile application using just a few lines of code.

Download the free trial SDK, explore our helpful resource center including sample codes, tutorials, guides and more to get started.