Ed and Pat,
Many thanks. Thats exactly what I'm looking for.
Pat,
I contacted the manufactor of Coosa and spoke with a company rep. They gave me the name and number of the closest distributor which for me was in New Orleans. The following link is their web address. I went with the blue water 26 because it is their strongest grade (density of 26 lbs per square foot). No rot and 30% lighter than plywood. It is expensive but not that much more than two sheets of 3/4 inch marine ply. They emailed me some spec sheets of some of their products. I will forward them to you if you are interested. Thanks again -Will
http://www.coosacomposites.com/