Pontoon boat. here are plans for an easy to build pontoon boat. this pontoon boat measures 12 ft long, has room for 3 adults and is great for using in still waters.. How to build a small pontoon boat – how to find easy boat plans, wooden boat plans, boat building plans, free boat plans, boat plans, build a boat and. Pontoon boat plans can be used to help you build a pontoon boat you can use for all of your water activities. pontoon boats are known for their flat-bottomed.