How To Build Gambrel Roof Trusses For A Shed

How to build simple roof truss for shed.

How to build gambrel roof trusses for a shed.

Once everything is in place get some scrap pieces of 2 4 and place each one along the framed truss to make an outline. Once all pieces are cut we can lay them out together so that they form a 10 wide gambrel truss. The entire truss should be laying flat on the shed floor exactly as it will fit for the roof but it will be lying on the floor. Save 8 rafter beams for later.

Find three pieces of cardboard and lay them on the ground. If you have 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. If you want to add add style and character to the gambrel roof shed you need to cut several pieces of 1 4 plywood and attach them to the overhangs components. 4 identical truss pieces for your gambrel shed roof.

Use 1 1 2 finishing nails to lock the plywood into place. These will be used to make the roof ends. Our next step is to transfer these measurements to a 2x4 and cut 4 pieces to form our first truss. Using a pen trace the inside and outside bends of the trusses on the cardboard making what should look like a double l shape.

Use 6 screws per gusset 3 into each beam. Attach the truss firmly to your shed. Lay a piece of 10 ft 5 ft 3 0 m 1 5 m plywood on the floor. They need to be secure for permanent use.

Align them to the edges of the floor and attach with 3 to 4 screws along their length. Lay down the piece of plywood in an area with ample space. Build a temporary truss jig by screwing 2 long 2 4 s to adjacent edges of the floor at 90 degrees to each other. It also helps to add metal angle brackets at the bearing points where your trusses meet your shed.

This piece of plywood represents the dimensions for your roof and will serve as an assembly site for your rafters. This way the floor acts as a giant builders square. If you are building a gambrel roofed shed then this is likely what you would use coupled with a bottom chord. However a gambrel truss roof uses a howe truss design beneath the top chords of the gambrel to reinforce the roof structure and extend the span.

Transfer measurements to 2x4 s. Continue the project by fitting the soffit on the opposite side of the shed.