This step by step diy article is about how to build double shed doors. after building a large storage shed, you need to take care of the other steps, such as building the door and attaching the trims. if you want to have a proper access to the shed, you should consider building a pair of double doors, as this will provide lots of advantages.. This step by step woodworking project is about small garden shed door and trims plans. this is part 3 of the 6