How-to-frame-a-gable-shed-roof, how to build a gable roof. the gable roof is one of the most popular roof designs due to its attractive symmetrical shape, efficiency at shedding water, and option for attic space. building a gabled roof requires basic carpentry tools and.... Shed roof framing process explained – step by step instructions. framing a shed roof is similar to framing a wall. the fascia board is the bottom plate and the ridge board the top plate. keep it simple and remember; it’s a shed! stick to the basics of simplified design and use dimensions that don’t generate waste., a gable shed roof is the easiest to build, and depending on the pitch of the roof, will provide you with some storage space in the attic area. this style of shed roof is one of the most common and can be utilized for building playhouses, garden sheds, utility sheds and more.