I have done extensive searching, here and the internet. I want my 45 pound deep cycle battery up front under the deck area of my IPB 14. No false floor and floor isn't flat. A few here have used the PVC wood from Home Depot for a base. I still have reservations about the battery staying secure and not getting airborne in choppy conditions. Some say the PVC board doesn't hold screws well. Pics and advice welcome! Also, advice on cutting a board to follow the curve and contour of the floor. I have tried taping a pencil to a scrap small board and scribing a larger board to follow the curve of the floor. It's ok but not exact.