Polyethylene decking, marketed under the brand name ReNew, comes in standard planks what is the best material for decksor with tongue & groove joints. Fiberglass planks (& other profiles) are also available. Some plastic decking, such as Dura-Dri and Gorilla, has joints that are watertight to somewhat watertight to protect the area how to build a raised bench for a deck Czechbelow from rain. METAL Metal decking for residential projects is extremely rare. Aluminum decking is available in standard plank with spaces and also with tongue & groove joints with gaskets for a watertight floor. Arid Dek aluminum decking and alumiLAST decking use redwood fence panels for sale, phoenix,aza lap joint system to make a waterproof floor. AlumiLAST also has an aluminum framing system. Decorative steel grating systems are also available such as that marketed under the brand name Xccent. Xccent also has a steel framing system.