As indicated in the product description this fixture is aluminum. It's very sturdy with impressive construction, particularly for the price. I was replacing an old fixture so the wiring was already in place. Once I had all my tools ready and the parts unpacked I installed this unit in about five minutes. After installation it was easy to rotate it so that the cross-hatch bars that cover the globe were aligned as I wanted. (Parallel and perpendicular to the roof line of my house as I installed the fixture under the eaves.) Anyone who can handle a screwdriver and pliers should easily be able to install this lamp. Overall I give it a big "thumbs up"!