There are twelve groups of DRIDS, each with its own distinct shape, colour and code to ease recognition and be inclusive. In each group, there are a number of DRIDS depending on their material or product make-up. For example the Wood group includes DRIDS that are generally one product such as plywood, chipboard or dimensional timbers.
Whereas wood furniture or wood framed glass panel systems may be in the Composites group. The colours have been chosen to reflect those used by BRE, WRAP, ICE and Zero Waste Scotland.