Boat building courses, skin boats, canoes, kayaks, rowboats, boat building plans, instructions, kits, materials, classes. everything you need to build your. Build a flat bottom jon boat plans . these plans are to build a flat bottom fishing jon boat. fisherman who like to work the shallow backwaters and weed.  8′ puddle duck racer one design racing sailboat based on bolger brick. developmental class, defined hull, unlimited sail rig and underwater fins..