The PolyDome Duck House is made of UV stabilized polyethylene. The house sizeis 10-3/4” wide x 11-1/2” deep x 19-3/4” tall in the front and 24” tall at the back. There is a removable bottom for cleaning. The backing is wood for easy installation and is 28” long. A wire mesh on the inside front helps young ducks escape when they are old enough.