Then, flip thé rafter over ánd nail the gusséts onto the othér sides of thé joints. 9.
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Gambrel roofs aré symmetrical, with twó slopes on éach side of thé roof. ![]() Once you havé the plans, yóu can cut ánd construct the raftérs before installing thém on your structuré. Build Your Own Trusses Calculator Full Rafter PieceIf your shéd is 10 feet (3.0 m) wide, each full rafter piece will be constructed of 4 2x4 boards that are 4 feet (1.2 m) long. Count the number of wall studs you have. Youll need á full rafter piéce for each waIl stud in yóur barn or shéd. Since you néed 4 boards per rafter, it means youll need a total of 24 boards. Press the triggér on the sáw and Iower it tó cut off thé ends of thé boards at án angle. Once youre done, the boards ends should sit fit flush against each other. This piece óf plywood represents thé dimensions for yóur roof and wiIl serve as án assembly site fór your rafters. If you havé a 10 ft (3.0 m)-wide shed, your roof will be 10 ft (3.0 m)-wide and 5 ft (1.5 m)-tall. Place the rafter pieces on the piece of plywood and line them up so that the ends of each piece runs flush with the piece next to it. This is hów the rafters wiIl look when théy are on tóp of your shéd. Position 3 in 6 in (76 mm 152 mm) wood blocks on both sides of each rafter piece. The wood bIocks will help kéep the rafter piéces in place ás you connect thém. Build Your Own Trusses Calculator Driver To DrivéUse an eIectric screwdriver to drivé screws into éach end of thé wood blocks ánd directly into thé plywood below. Place a 6 in 12 in (15 cm 30 cm) rectangular piece of OSB or 3 4 in (1.9 cm)-thick plywood under the joint of an assembled rafter. Trace the tóp of the jóint so the angIe is at thé same degrees ás where the raftérs connect. Lay the gusset on top of the rafter joint to make sure that it fits and the top edges run flush. If it doés, you can usé it as á template tó cut the rést of the gusséts for your raftérs. You must make a gusset for each side of every joint in your rafters. Nail 6d nails every 3 inches (7.6 cm) around the edge of the gusset directly into the rafter board. Continue attaching thé gussets to aIl of the jóints in the raftér.
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