The difference is in the structure of the tile, particularly the underside, where Premium has stronger support legs, among other things. Golv Royal has been developed for the home environment, e.g. garages and is intended for “normal” use. Golv Premium is recommended, for instance, for workshops, where the floor is always in use and where the floor is constantly up and re-laid frequently, such as in racing contexts. Such flooring is subject to a lot of wear and Premium is required to cope with these challenges.