The 30″ X 16″(ID) coaming of the Sea Bee is comprised of three 3/4″ X 1/2″ rings and one 1.5″ X 1/4″ coaming lip. One of the smaller rings serves as the base plate and is epoxied to the boat. The 2 remaining rings and the coaming lip are epoxied together and are bolted to the base plate.