Rafter Roof Shed

Easy rafters is designed to calculate shed roofs that are framed to a ledger board nailed against a vertical wall not freestanding shed roofs supported by walls at both ends.

Rafter roof shed.

To build a shed roof you ll need rafter boards plywood gusset plates plywood sheathing felt roofing paper and shingles. It is one of a series of sloped structural members that extend from the ridge or hip to the wall plate designed to support the roof deck and its associated loads. For most shed owners this is more than enough span for our backyard sheds. A stick framed roof uses 2x4 s or 2x6 s or whatever you are framing with but has a ridge board running down the middle ridge line.

The roof on this shed is a 4 in 12 slope which makes it a 18 and one half degree angle on the board ends. As a general rule roofs that have a high human occupancy rate should be framed with rafters every 16 structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. The roof rafters provide integral structural support to the roof. Sometimes the rafter will have a tail and extend out past the wall so that you have a soffit or overhang.

A pair of rafters is called a couple. You should use 2 4 rafters if you live in an area without heavy snow or wind loads. Rafter is a sloping beam usually wood that supports a pitched roof. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.

There could be many rafters supporting a roof. First cut your rafter boards to size using a circular saw to make sure they fit your roof. Shed roof a shed roof slopes in one direction only. Lean to rafters then connect to a ledger board against a wall of another shed or house.

You can use common rafters on any shed roof but they make the most sense when constructing a gable roof or lean to type shed roof where they can sit on or attach to top plates of a wall. The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope. Remember you can span a gable roofed shed up to 17 with syp and 15 with spf 2 4 rafters at 24 o c. You then have rafters running down from this ridge board and resting on the top wall plates.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.