Interleaved 2 of 5

Interleaved 2 of 5 (ITF) is a numeric-only, high-density 1D barcode that always encodes an even number of digits.

How it works

Both the bars and the spaces carry data — digits are interleaved in pairs, one in the bars and one in the spaces — nearly doubling density versus standard 2 of 5.

Where it's used

Warehousing, distribution and carton labelling, especially on corrugated cardboard where its printing tolerance suits rough surfaces.