In skateboarding your deck is the first step in purchasing your skateboard. When you go looking for a deck you want to look for the following things:
  • Flex. This is of upmost importance. If you have no flex in your deck the moment you do a complex trick (such as a Kasper) or a grind your going to have two decks.
  • Concave. This is also of upmost importance. Not only does it help you turn and get pop, but it also helps alleviate stress on the deck when doing grinds and complex tricks so it will last longer.
  • Concaved kicks. This helps prolong the life of the board when doing Kaspers and also gives you more pop.
  • 7-ply. Anything less isn't worth it. 7-ply are strong and reliable, anything less snaps too easily.
  • Weight. The lighter it is, the better. If it is too heavy you won't get any pop, so make sure its light (most good 7-ply decks should be lighter than 5-ply).
  • Maple. Make sure the deck is Maple wood. Maple is light, flexible and durable. Accept nothing lest, they are the best wood for skateboards. Don't go for cheapies because they most probably won't have Maple.

If you don't want to go searching, almost all decks made by these brands will have all of the above:
Maple
World Industries
Birdhouse
Deca
Girl