Snowboard size - question ?! =]?

Question

ok so I'm about 5'7, 115 lbs. I wear a size 8 (womens)

.. do boots run big/small? or depends on the brand ...

anyways i was wondering that if a 143 .. or a 148 would be better b/c the board i was looking at doesn't have a 146 style .. so could anyone help? =D

oh heres the board

http://www.k2snowboards.com/boards/board.asp?productid=22

Answer 1

148.

With the143 you could possibly experience toe/heel drag on a k2.

Since you didn't clarify that you're strictly a park rider, then 148, if all you wanna do is rails and jib and hit the park, 143, if you want a board to do everything. 148.