I joined each extension’s pieces together and to the transom, using pine strips above and oak strips below the waterline. I wanted to be able to disassemble the extensions if something went wrong, so I used Sikaflex and stainless-steel screws in the attachments to the hull, while the extensions themselves were glued together and filleted with epoxy. The top side of each extension serves as a step for boarding and has an inspection hatch. Before assembly, I painted the parts with epoxy primer. Because of the multiple angles, there were some puzzles to solve when putting the parts together the first time. I took care of gaps with epoxy fillets. more