I am putting seats on my Alumacraft 1232 next week. My plan was to use sealed ply or marine ply on top of the benches and mount the seats to those. But having the boat stored outside I was looking at Seaboard. Amazon has some reasonable prices on it. Just wanted to know how does the strength compare to plywood? Would I be ok using a good size 1/2" sheet (24"x24") on top of my benches to attach my seats too? I will be using tee-nuts to fasten the seats to the board then use rivnuts to fasten the board to the bench. Just for a nice clean look that has no chance of rotting. Also the front seat will have a 7" pedestal and the back just a quick disconnect.