I had a Smith Brothers ten foot plywood pram for 45 years. (It died last summer in Montana from old age and elder abuse.) I had it built with some extra height in the sidewalls. Canted outward, 60 inches at max. width. Too wide for a pickup, which I never owned, it cartopped easily on a succession of station wagons. Weight around 90 pounds, with fiberglassed bottom. Mostly used for stillwater fishing, but I floated moderate chop in streams like the Nooksack and Sauk with no problems. Built with a narrow bow, it maneuvered easily, but I never felt safe with a companion on board; a wider bow would have been much better.