Answer by  
                                                                                          senthil34 (169)
                                                            
                          
                          
                                                          I've got a similar 12' boat, I've also been considering a wood free alternative and a 15hp. I will most likely use 3/4" nylon(? ) panel to make my transom, it's as sturdy as plywood in such a small width and will never rot. I'm actually not sure what the white plastic material is that I have here,