For our 4 x8 lean to example using a 2 4 rafter the depth of the birdsmouth is limited by the 1 3 depth of the rafter rule.
How to frame a storage shed roof.
This is whether to build your own roof trusses by pre made trusses or to simply stick frame in your roof.
Roof framing doesn t have to be daunting but if it s your first try a simple gable roof say on a garden shed is the best bet.
Angled from the ground to the roof.
You can actually build a jig on your shed floor or any open flat floor that has enough room.
You can build them all just as you did the first one and they will all be identical.
Angled from the ground to the roof.
Attach the rafter to the top plates using 3 8d nails at each rafter seat to top plate connection.
Make sure that the overhang of the rafter birdsmouth is the same on both ends of the rafter.
The trick for learning how to build a storage shed is to stretch the line across a scrap of wood at each end so there s a space between the line and the part you re straightening.
Use a framing square to help lay out the notch based on the slope of the roof.
A 2 4 wall with a 2 6 rafter can be notched for a 4 seat.
Lean and secure two 2x4s or 2x6s planks against the fascia board of the low wall.
Plywood at each end of the top plate and stretch a line very tightly over the plywood.
Build one truss check to see that it fits and if it does you are good to go with the rest of the trusses.
The typical stick frame roof will be made from 2x4 s or 2x6 s and has a ridge board that runs down the middle of the roof.
Use 3 nails for each side.
Fasten the truss by driving 8d finishing nails at an angle down through the board just above the birdsmouth notch and into the underlying wall plate.
Before lifting sheathing onto the roof build yourself a ladder.
Attach the end rafters to the wall plates of your shed frame.
On a wall for example tack small scraps of 1 2 in.
Once you have made the decision to use a gable style roof on your shed you have one more decision to make.
Remove the temporary collar ties.
Finish the end walls with blocking studs notched to fit around the rafters and fastened to the top plate.
Lower the first rafter truss into place at either the front or back of the shed.