I don't know, I do alot of surfing/wakeboarding (thats why I bought it E), I am primarily a short boarder. I live in Florida which means I am usually hauling 3 boards (crappy condition). My long board is 8'3 (I know not really a long board by traditional standards.)
It fits very easily inside. I avoid stacking boards because the wax problem.
I saw the rack they look well made. but you can just as easy use a strap with a jaw end on it and loop the board on. You will Love this vehicle It really is the ultimate surf machine!!!