7 Best Of How To Make A Simple Shed Roof Best Resolution Image. For roofs that wont experience heavy snow loads a gable roof can span up to 22 with 24 rafters. You will need to build a number of trusses based.
A is half the distance of your shed width. B is the distance from the top of your walls top plate to the inside of your roof peak. We will be going over how to do a king post truss on a shed with a 412 roof but it can be done on any type of pitch.
Turn in a set of building blueprints with a pitch less than 3-12 or build a shed style roof with a low pitch and your building inspector will not pass the construction and provisions will have to be made to get the pitch up to acceptable standards if it is going to be shingled.
The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope. I have this Makita one which has been awesome. Keeping this formula in mind we can build a shed truss or figure out the measurements of a rafter with a ridge board running down the roof peak. You can use either 26 or 24 rafters for roofs with a 312 pitch or greater but it depends on the overall size of your shed.