Choose aluminum "U" channel for structural uses where strength counts. This "U" channel moulding has 3/4" legs and a 3/4" base with a 1/16" thickness. The right angles inside and outside make it ideal for trim applications, brackets, and shower enclosures. Extruded aluminum naturally resists corrosion is extremely lightweight and durable, and great for framing. It comes in a standard clear satin finish. You can order it in a variety of lengths to fit your fabrication needs, and it's easy to cut.