Measurements: 21-1/4 in. x 30-3/4 in. Finish: White Primer. Inside Diameter: 3-7/8 in. Fits Canopies Up To: 6 in. Projection: 1-3/4 in. Material: Polyurethane. Brand: Ekena Millwork. Hand Painted Option To choose one of our pre-made finishes: Click Here. For a custom made finish: Click Here.