Two-dimensional Data Matrix barcodes are rectangular – usually square – arrays of black and white cells, instead of the linear bars and spaces of one-dimensional barcodes. Its physical size is not fixed, so it is used on a wide range of items from the very small (e.g. electronic components) to the very large (e.g. machines).

The number of cells can vary from 8x8 to 144x144. Two edges are bordered with a line of black cells, the opposite edges are bordered in a broken line of alternating black and white cells.

Click to expand/collapse hidden textOptions
Permit rectangular encodings
Variant
These options provide a convenient means to scale the physical size of the barcode by factors of a default size.

Variant option

Factor

Example size

1

1/3

0.05 inch

2

2/3

0.10 inch

3

3/3 = default

0.15 inch

4

4/3

0.20 inch

6

6/3 = 2 x default

0.30 inch