I just took the time to build some marine plywood side rails for my double rail frame. Due to the cost of the material I was really careful when making them, measure twice cut once type of thing. I finished my router work last night and I am ready to seal them. I typically do a Sand-seal and then 3 or more good coats of Spar-seal and I have had good results...but it can always be better. I decided to hold off on that and through something out on the buzz to see if anyone has a better way of coating/sealing/finishing (what ever you want to call it) wood decking?