a unitized fiber - reinforced plastic boat hull frame is disclosed in which the structural members , most commonly a keel and ribs , comprising the frame are constructed of fiber - reinforced plastic formed within a mold corresponding to the shapes of the various members . the members are attached to one another by either contacting them together prior to the completion of curing to produce a plastic bond , or with appropriate adhesives after curing . planking comprised of any suitable material , wood for example , is added to complete the hull .