Skateboard decks have 7 layers most Decks are made of wood and glue [usually maple]┬áthe skateboard was created in the 1930s. In Southern California, a skate-scooter was made out of fruit crates with wheels attached to the bottom. This later evolved into a skateboard that was made out of 2×4 ft (61×121.9 cm) piece of wood and four metal wheels taken from a scooter or roller skates,skateboards were first manufactured in the late 1950s. First ever skateboard look something like this. To get more information copy this link:http://www.skateboardingmagazine.com/the-evolution-of-skateboarding-a-history-from-sidewalk-surfing-to-superstardom/