Aluminum construction resists rust and corrosionIdeal for plumbing, heating, and ventilation projectsCut to get the required length MD Building Products provides a full assortment of aluminum shapes and sheets for any project you may encounter. Easy to cut, form and fabricate. Aluminum material will not rust or corrode. Perforated, decorative design is great for door and window security, plumbing, heating and ventilation projects, radiator heater enclosures, craft and hobby projects, room dividers, cabinet ventilation and more.0.020 in. thickBlack finish, perforated aluminum sheetCan be cut with tin snipsUse sheet metal screws or rivets to attach to other materialsUse indoors or outdoors resists corrosionSmooth sharp edges with a file or an emery cloth to reduce the risk of injury