Houseboat plans can give you a start in planning your houseboat building project. check out these free or low cost houseboat plans. A 20-foot trailerable houseboat build it yourself diy woodworking project. it’s like a camper that goes on water. budget houseboat has 300 square feet of. Hoist, load, and stack bulky items with your tractor using this handy homebuilt front end loader attachment. diy plan shows how to turn your farm equipment.