Because the shed is designed to abut to another structure, the foundation need only be pressure-treated skids, the roof pitched in only one direction to shed water, and the back wall sheathed with 1/2-inch CDX plywood, which withstands indirect exposure to moisture. See Anatomy of an Outdoor Shed or Playhouse for more about typical shed construction.
The next section of the guide that I will take you through is the best ways and designs one may use to build an ideal shed according to one’s desires. We all have different tastes, so it is important to go through some of the designs used so that one may pick the design that suits you better. I will discuss the different best sheds designs and their benefits.
Omit the bird’s-mouth from four rafters and use these on the ends. Cut the 2x4s for the ridge and subfascia to length and mark the rafter positions on them. Line up the rafters with the marks and nail through the ridge and subfascia with 16d nails to secure them. When the roof frame is complete, line up the subfascia with the chalk line on the platform and tack it in three or four places with toe screws to hold the frame straight while you install the soffit.
By searching online you can find some free shed plans that are decent. Most often though these plans will be geared towards more experienced builders and they will not be very detailed. If you are a first time builder look for plans you can understand, even if it means paying a little. Use plans that contain a material list and plenty of details if this is your first time. Most free plans available are not as detailed with the building steps, so free is not always a good idea. If you go to the top of this page I have provided a list of some of the best plans from reputable websites.
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.