Depending on the size of your shed and what you plan to store inside, you can choose from either a concrete foundation or just the plain earth. The latter is not really recommendable especially if it contains a lot of moisture. It is also very difficult to level and create framing for your partitions. But you also have to make sure that your roof design should conform to the building code in your area. After your application has been approved, you should now have your roof trusses fabricated, if you don t have the tools nor the skills to do this, most lumber yards can do this for you for a minimal fee. It s also difficult to decide which if which to throw away, to donate, or to sell. And to those that did not make the cut, they are relegated back to the attic or to the garage, in which case causing clutter still. The sure fire way of clearing up this space is to build a shed, whether for your tools, your garden equipments or your mementos. Building a storage shed will allow you to discover many of the things that professional carpenters know, like the many small details that complete the work. For example, with a wooden shed, the lumber you choose can make a tremendous difference. Dried and cured wood is the best as they don t tend to split when it s dry season. What you re after is a roof that does not leak, so feel free to use any material that will help you achieve this goal. Depending on your budget or creativity, you can just buy prefabricated doors and windows. If you have the skills and the time, you can choose from a wide variety of window shapes and styles. They have been the first choice for many homes, garages, buildings, and different other structures designed for strength and for durability. So if steel is good enough for a skyscraper, then what more for a shed? Steel as a building material is not as expensive as one would think. Considering that they offer less maintenance needs, they pay for themselves in the long run.