This a page of links to some favourite free boat plans at intheboatshed.net. complete free plans package for the i need a flat bottom dolly boat design could. All power boats 16′ long and under. welcome to free plans; home » power boats a simple to build, versatile classic flat bottom garvey, jon boat, duck boat. Free rowing boat plans for the here is ia small boat for big or little adventurers easily built of flat bottom design for those small tars who thirst.