GS1 DataBar Stacked

DatabarStacked

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A GS1 DataBar is a high density bar code that's designed to fit a large amount of information into a smaller amount of space than a regular UPC bar code. A single, regular GS1 DataBar can hold up to 14 digits. An Extended GS1 DataBar can hold even more. A GS1 DataBar Stacked consists of two GS1 bar codes piled on top of one another, in order to pack more consecutive information into a small, square space. This type of stacked code is typically used in supermarkets, in order to include more information on smaller packages, such as on produce.

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Specifications: Each GS1 bar code in the stack has its own coding, consisting of a left guard character, several data character sections, interspersed with finder patterns, a check digit, and a right guard character. Whereas an individual GS1 DataBar can only encode limited alphanumeric characters, a stacked one combines the information in the two codes to allow it to encode any ASCII character.

Advantages: The stacking of the codes makes the GS1 DataBar Stacked more versatile and allows it to encode a larger amount of information within a smaller space than most other bar codes. It also includes a check digit to guard against errors.

Disadvantages: It's less space efficient than a single GS1 DataBar. And the amount of information you can encode is still limited.

Symbology Guide

Learn about different types of barcodes, their components, marking types, and decoding challenges in this comprehensive whitepaper.

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