but there are some...
like my Aristocraft (read the fiberglass brochures in the link. under vintage boats). it's billed as wood free i believe. mostly it is too. not saying there isn't some wood in it. but not a lot. not stringers for sure as there isn't any. these boats ceased production in '80. from about '60- 1980 these boats were in production. funliners are also mostly wood free.