I used Alabass idea, but went 3/4″ since Im a big boy. Wrap the carpet around top and at least around the bottom edging and it is flush. Mine is not perfect, and it cost me a torn bicep tendon intially, but it is flush. Use single layer of fiberglass to help strengthen and reduce water issues….Last edited by jignpig on February 11th, 2012, 8:37 pm, edited 1 time in total.96 Eyra/12 Mercury 175 Pro XS with 2015 single axle trailer2017 Victory Gunner