Recently changed RV's and the new one can not be fitted with this kind of rack. Can not be shipped, pick up in Calabash, NC. $110.
Last thing I wanted to do was drill holes in the roof. Bad enough to keep it water tight, 16 more holes for roof mounted rack was just not what I wanted to do. This cargo box rack is for two boards. It is lockable and should be rather hard to break into. Even though its wood, it is heavy duty exterior ply and a huge lock.
I used pipe insulation foam tubes for padding and the box has reinforcements where the hinge area is located. To keep the box small, I used a short board fin to lock it in place.