Most decks are made of six to nine-plywood layers. Other materials used in making decks include fiberglass, bamboo, resin, Kevlar, carbon fiber, aluminum, and plastic. All these make the board more light. Some decks made from maple plywood are dyed to make many different colored plywood. Modern decks are made in different sizes. Most are 7 to 10.5 inches wide. Wider decks can be used for greater stability when skating on curving surfaces including ramps. Skateboard decks are normally between 28 and 33 inches long. The bottom of the deck can be printed with a design by the maker or it can be blank. 