ITF-14 (Interleaved Two of Five, 14 digits) is the barcode on shipping cartons that contain retail products. The 14-digit number is the GTIN-14 — your product's EAN-13 wrapped in an outer-pack indicator digit.
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Structure
First digit is the indicator digit (1–8 for fixed pack quantity, 9 for variable weight). Next 12 digits are the GTIN-12 or GTIN-13 of the product inside (with leading zero if needed). The last is a check digit.
ITF-14 is always printed inside a heavy black border called a 'bearer bar' — that's part of the spec and helps low-quality scanners frame the code.
When to use it
Use ITF-14 on the outside of cartons that contain consumer products with EAN-13 or UPC-A codes. Retail back-of-store and warehouse scanners read the ITF-14 for case-level inventory.
Don't use ITF-14 on the consumer product itself — for that, use EAN-13 or UPC-A.
Frequently asked questions
- Do I need a GS1 number for ITF-14?
- Yes if the carton contains products you sell at retail. The GTIN-14 is derived from your GS1-issued GTIN.
- Why does my barcode have a thick black border?
- The bearer bar is required by the ITF-14 spec. It is not a render artifact.