Rick,
not like SeaDek. I'm talking about actual fiberglass decking. A while back, i bought an access deck hatch to go over the fuel sender area. The hatch is not water tight. I want to put one in that is watertight, but i can't find anything that is the same size as that deck hatch, only smaller. To install a smaller one, i need deck material...don't want to have to make myself out of fiberglass cloth, resin and then gelcoat....