A gable style roof is considered to be the easiest type of shed roof framing to work with. essentially you will be building a series of triangular shaped trusses based on the pitch of your roof. you will need to build a number of trusses based on the length of your roof.. Building a shed roof is not as complicated as you might think. the simple reality is that if you have reached the point in building your shed when it is time to build the roof, you have probably already mastered most if not all the skills you need to frame in and complete your shed roof.. This step by step diy woodworking project is about how to build a 8