MaxiCode is not really a barcode – it doesn't have any bars. It is a fixed size matrix symbology made up of offset rows of hexagonal modules, with a Finder pattern in the centre.

MaxiCode symbols are reproduced at a width of 25.5 mm and a height of 24.4 mm (in each case there is a tolerance of 1.5 mm).
Intended primarily for encoding addresses for postal and delivery applications, it has a relatively low information content. On the other hand the fixed physical size of the image simplifies the facilities required for both printing and scanning the symbols.