To find out which board is the best for your size and your style, you need to know first if you would like freestyle or freeride. So for now, 3 Freestyle board sizes are available: 29.1” for kids, 32.3”, 33.2” for adults and 1 cruising board 34.5”. Then, go to the the Board section of this website and read “Stance options” table. If you snowboard, keep the same stance as your snowboard, if you begin, go to Board Adjustment section, you will find a formula to determine your stance.
http://www.spinskateboards.com/adjustement2-board.php