A pontoon is a flotation device with buoyancy sufficient to float itself as well as a heavy load. a pontoon boat is a flattish boat that relies on pontoons to float.. Our boat trailer plans feature the most modern, up-to-date, and technologically advanced features available to give you a boat trailer that’s equal or superior. The pond king sport is our 12’ fishing pontoon boat. this aluminum pontoon boat is built of all maintenance free, weatherproof materials. leave it on your pond so.