High quality Chicken Houses, Chicken Coops and Chicken House Accessories - Free UK Delivery on all Hen Houses & Poutry Houses. So where can you find free chicken coop blueprints? The best place to find them is online. There's many websites with free designs and ideas. The only drawback is many of these plans aren't very useful. They use hard-to-find materials, and are often shoddy at best. But you can still take several ideas from here, and use them to make your own design.