If you check out this thread: http://www.microskiff.com/cgi-bin/yabb2/YaBB.pl?num=1241373131 You'll see I'm going to be in need of some supplies here soon. How many layers of cloth should I use on each side of the deck? I'm going to use one sheet of 1/4" luan and will not have any areas that are more than 6" square that are unsupported. I will also fill the spaces with foam. My calculations show that I have about 75 square feet of area to cover on the deck areas. I'm using the formula at http://www.fibreglass.com/HOWTO/k-fun-fibre.htm My calcs show that I need about 50oz. of resin per layer if I use 6oz cloth. Will 2 layers of 6oz cloth on the topside and one on the bottom be enough?