Marine decking is a type of decking that is designed to be used on decks and other areas of a boat that are exposed to the elements. Marine decking typically consists of a series of layers that are bonded together with an adhesive, and it can be made from a variety of materials, including wood, fiberglass, or plastic. Marine decking is often treated with sealants or coatings to protect it against moisture and corrosion, and it can also be color-coded for easy identification.