This Ultimate Bluebird house is made from 5/8" Poly-Lumber, taupe in color with a blue roof.  Good for the bluebirds, good for the environment.  Easy to clean, long lasting.  The Ultimate Bluebird house has side doors engraved with CLEAN and VIEW.  Open the VIEW door and watch the activity in the house without disturbing the inhabitants.  There is a plexy glass panel so nothing is disturbed while you watch.  This house also has a raised screen floor to reduce blowfly infestations.  The entry hole is 1.5".  Measures 11" long x 8.5" wide and 12.625" high.