Practically any solid, even well drained surface. Our deck tiles were designed for rubber membrane surfaces or any other even sturdy surface, however this does not limit them only to these applications. The backing will not damage the surface underneath. the tiles work perfectly over waterproof membranes, fibergalss coating or EPDM roofing material. They can be used in courtyards, balconies, patios, porches, roof tops, hot tub surrounds, pool surrounds, garden paths, boat decks, garages, gazebos, sun rooms, basements, old wood decks campgrounds…..anywhere you would like a beautiful wood deck to walk on. You can even use this system to build a temporary floor for weddings or trade shows.