How To Create The Jig For A Gable Roof Trusses

The beam extends to the far end of the roof hanging over.

How to create the jig for a gable roof trusses.

Then screw this jig assembly to the floor. Assemble enough trusses for your shed roof. Nail along the edges of the osb or plywood driving the nails into the rafters every 8 inches 20 cm with 8d common nails. Now cut two small pieces of wood and screw them to the outside of these marks.

Cut 4 more truss pieces and line them up in your jig then continue nailing on gusset plates. Measure and cut the pieces for the trusses. This sets the width of the truss. Use a speed square to mark the angles.

Mark the center of this 2 4 and attach it to the edge of the floor matching the above truss center line. Extend it above the floor 1 1 2 inches and secure to the edge of the floor with several 3 inch screws. Start with the top corners of the roof first. The dimensions of your structure will determine the angles formed by the truss s top and bottom beams or chords.

Once everything is in place get some scrap pieces of 2 4 and place each one along the framed truss to make an outline. Making sure that the truss pieces line up correctly and they will indeed fit your 10 wide shed we can make a jig using this first truss. Place the osb or plywood on the top portion of the rafters and make sure that the edges run flush. Trusses can be constructed with smaller sized lumber than rafters and often their cost is not significantly higher than normal rafters.

Nail osb or plywood onto the rafters to enclose the roof. A truss for a gable roof on one side of your home for example might need to be 15 feet 4 6 m long and 4 6 feet 1 2 1 8 m tall. Place two pencil marks eight feet apart on the edge of the unused 2 4 top plate. You can do this by making a simple jig.

Use of manufactured roof trusses can dramatically cut labor costs when framing a gable roof compared to building rafters. Once in the proper place screw them into the floor making a frame or jig.