http://www.shedblueprintsdiy.com has right outdoor shed building diagrams for your every need. You can find shed blueprints and step by step instructions for creating sheds of various different sizes and layouts at our site. To construct your own storage barn you require garden barn building blueprint to begin with. It is cheaper and more exciting to construct a outbuilding yourself than to purchase a prefab shed kit. If you choose to construct your own outbuilding you can customize it as per your requirements.