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. Chesapeake marine design offers a wide range of products and services in boat design and engineering including stock boat plans, custom yacht design services. Wooden boat plans and kits. many boat plans are offered online. at first everything is very confusing, then you start to get some idea of the different types of boats.