The website BackYardChickens.com publishes plans for building your own chicken coop. BackYard Chickens publishes plans for different sized and shaped chicken coops. All plans are free of charge and easy to understand. Plans can be found by clicking on the Coops tab on the home page.
Backyard Chickens is a great place to turn to if you want to use another persons plans and don't want to figure out all measurements and needed supplies on your own. It is also easy to make modifications to the plans to make the coop personal for you and your new pets. You can also read and learn about waterers, feeders, incubators and chicken pens.