Originally Posted by lhowemt
I love polymax, but don't like to span it more than 8" and i still am careful where i step. If you don't have a double rail frame, it is 't going to hold up. It sure is nice to keep the weight down, and gives great grip for the dogs. On my first raft i just did a small fore/aft bar like a second rail, but only in the cockpit. I still dis somethi g to support on the front/rear bays too. But this way i didn't need a full double rail. Drawback- you can no longer adjust the size of the cockpit. Personally i get tired of wood, and if i were going to do something else i'd do metal.
What you save in weight you gain in a double rail... I would prefer plastic decks, but for the money I am sticking to 3/4" ply wood with water sealer. For now I have been securing them with a 1' strap on the front and rear. When I rig up my raft I run the flip lines through the desk and the frame which holds the desks right where I want them. I cut the wood so it contours around the low-pros that way there is a little more supports. The longest span is 24" and I am fine walking along it. I would not jump though. No need to push it.
I am building a new deck for my new raft, I am going to try out loom bolts to hold it in place. I looked into U-bolts with barrel bolts to give it a nice looking finish, but it cost $4 per barrel bolt, which makes each attachment point almost $10. At that price I would rather have a custom diamond plate made.