Western Mountain Bluebird House. Both vertical sides open like doors. The right side has a clear plastic window inside the wood door, so you can peak into see the nest without disturbing the inhabitants. The left door easily opens for seasonal cleaning, a single pin can be twisted to unlock and swing the door open. To lock, simple twist the pin. Providing a nestbox in your backyard will bring you seasons of enjoyment as you watch these beautiful birds raise their young. 15" x 7.25" x 10.25". Stovall products feature all cedar construction, stainless steel and dichromate plated screws, washers, hooks and chains, hand sanded, assembled with screws, many products coated with wood protector which accents the wood grain and the natural warmth of cedar. Environmentally green practices â€“ hand sorted down graded lumber. The Shop is heated with scrap wood, cooled with natural shade and insulation, nestled in a glen among 25+ acres of beech/maple/oak forest. Rumored staffing of woodland gnomes with a payroll of nuts and berries is still not factual.