There are many types of roof design that you can use to add to your shed. But since you are a beginner, I would advise you to build a simple roof structure so as to avoid the frustrations that can come with building complex roof structures. Complex roof structures also require additional tools and greats skills hence, it is time consuming and a bit expensive compared to the simple roof structure.
In a Vero Beach, Florida, midcentury modern neighborhood, Sanders Pace Architecture retained the lines and essence of the original house while redesigning it for their client's 21st-century lifestyle. Although it's at the front of the house and initially might resemble a garage, the detached "shed" can be used as a private studio or for guests. Because it's located on the coast, hurricane-proof doors were needed, but cedar was installed over them for an attractive but sturdy structure.
Very nice project. Seems to be well built. When I built mine we went with a full basement and made it tall enough for a 4 ft. attic as well. We maximized our footprint in storage capacity. Electricity in the shed was also a must with its own breaker panel. We needed the space because I even have stuff to fix stuff and there is no such thing as a bad piece of junk.
Build the framework for all four walls. To account for the fact that the front and back walls are different from each other (due to the doorframe in the front) and the side walls must both be sloped (to prevent rain from collecting on the roof), each of these will have to be tackled somewhat differently. It’s easiest to construct the back first, the front second, and the two sides last, as shown in the numbered image below. See How to Frame a Wall for more information before you read the instructions below.