How To Cut Roof Rafters For Shed Roof

In this video you will learn all about common rafters.

How to cut roof rafters for shed roof.

First cut your rafter boards to size using a circular saw to make sure they fit your roof. Make a birdsmouth notch at the end of each rafter to help it fit into place. We need to adjust the total run 73 inches in our example by subtracting 1 1 2 inches the full thickness of the ledger adjusted run 71 1 2 inches. Next set the framing square on top of the rafter beam and use a pencil to trace the outside edge of the framing square s tongue.

On a shed roof rafter run is the distance from a ledger on the main building to the outside of an addition wall or porch carrying beam. How to measure or figure rafter length and mark and cut them accurately. Use it to make the proper measurements marks and cuts on each rafter. Because a roof requires many rafters to frame it speeds things along if you use the first rafter as a pattern or template for the other rafters.

To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch. There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope. Then assemble your rafter halves into trusses using plywood gusset plates and attach the end rafters to your shed frame.

Once you ve marked the lines use your pencil to draw the diagonal length on the rafter. For standard shed roof rafter spacing see rafter span chart.