Building or renovating a shed or gazebo adds value and function to a property. Sheds can be used for a wide variety of purposes, from storing lawn and garden supplies to housing small animals. Gazebos make for a lovely location to host an outdoor party or simply relax and enjoy the landscape. When you're considering the addition or renovation of a shed or gazebo, you'll want to know about the costs of the various parts of the project as well as the value you'll get for the money.