non-metal, adjustable pedestals for supporting paving stones, wooden decks, sleepers, flooring panels, other pedestrian walk surfaces, or other materials on a sloped or flat surface, where the materials may be set on top of the pedestals to create a deck or floor surface

metal, adjustable pedestals for supporting paving stones, wooden decks, sleepers, flooring panels, other pedestrian walk surfaces, or other materials on a sloped or flat surface, where the materials may be set on top of the pedestals to create a deck or floor surface