A pergola is an outdoor structure featuring vertical posts or pillars that support a roof of crossbeams and an open lattice. It is primarily used to define an outdoor space, add partial shade, and provide a framework for climbing plants or woody vines. This Outdoor Pergola is made from Light-weight powder coated aluminum. The Powder Coated Rectangular shaped tubing profile is perfect for outdoor applications. This frame uses a combination of R Tube End Caps and Rectangular tubing.