Sorry, I know this has probobly been discussed to death but I can't seem to find my notes. I'm in the process of designing a 14'x28" recreational/fishing kayak to be built hybred style. I'd like to calculate the weight of the ( 40 sq ft) hull but need to get an approximation of how much a coat of 6 oz cloth and 3 layers of epoxy add. I'm thinking about 2.5oz /sf. Am I off by much?
Thanks
Dave