Can someone with this experience tell me if I need to cut away extra wood after cutting out a hatch to accommodate the carpet? I am going to get pretty standard Lowes outdoor carpet. Once I jig-out the hatch door from the deck (1/2 or 3/4") plywood, do I need to sand/trim the edges to allow for the wrapped-around carpet? Looking for a snug, but not forced fit. Many thanks...pics or links to builds are appreciated!