How To Cut Gambrel Roof Trusses

How to build a gambrel style shed roof.

How to cut gambrel roof trusses.

Using this method it will take under an hour to cut all the 1x4 strips and gusset plates. Starting the truss dimensions. How to calculate the angle of a gambrel roof truss step 1. Setting up the height of the truss.

To cut them out cut along the lines with a circular saw in the same order you drew them. Rip some osb into strips 12in wide and 8ft long. Determine a pitch for the top slope of the gambrel roof the rise in inches per foot from the midpoint. See table 3 for the truss count.

As you finish cutting each zigzag line the gusset will fall off exposing the next line. How to build perfect barn style gambrel roof trusses calculate number of pieces to cut. Cut osb web pieces. Finding the measurement for the mid line.

Find a nice wide open flat surface such as your shed floor or a garage floor. Cut the longest lines first then the short perpendiculars then the zigzags. You must also use glue construction adh. Our example will be for a.

45 degrees where the joists meet up with the top plate or header and 90 where the joists meet in the middle at the ridge board. Calculate gambrel angles with graph paper and a protractor. Cut these strips into pieces 6in long. Take the number under the column of the center.

You will need to make 22 5 degree angle cuts on the rafter joist ends that mate up to the top plate or header.