For anyone else looking for a way to have accessible storage without cluttering up your wood deck, REI-Outlet has these underdeck bags for about $30. Actually, I bought one because I haven't put any deck fittings on yet, and I wanted somewhere convenient to put a water bottle. I've got it installed in my Guillemot by epoxying 4 SS nuts to the underside of the deck for mounting points. I haven't tried it out yet, but it looks like it will work out pretty well. I think REI is offering free shipping through July 14th.