How To Cut Rafters For A Gable Roof

Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.

How to cut rafters for a gable roof.

This video will show you how to figure length and cut a common rafter for a gable roof using a framing square. Lean to rafters then connect to a ledger board against a wall of another shed or house. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. A seat cut is a horizontally level cut so the rafter can sit flat onto the wall plate.

The calculator provides online calculate the length of rafters a gable roof. 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. Online calculator produces an accurate calculation of the rafters online calculates the sizes of rafters for the roof. Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.

A plumb cut this is an angle to cut that will create a vertically plumb line on the rafter. The drawings and the size of the rafters are generated in real time. The length of rafters length overhang the angle of the saw cut the distance to drinking. The roof rafters provide integral structural support to the roof.

Using a carpenter s framing square mark the angled plumb line with a pencil at the end of a wood plank to find the place where you ll make the ridge cut the cut at the top of the rafter. Creating a birdsmouth cut is the classic way to prepare a rafter for a hand cut gable or shed roof. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. You can use common rafters on any shed roof but they make the most sense when constructing a gable roof or lean to type shed roof where they can sit on or attach to top plates of a wall.

Use it to make the proper measurements marks and cuts on each rafter. Mark the location where you ll cut each of the common rafters. A birds mouth is a combination of the two cuts made so the roof rafter sits tightly onto the wall plates square edge.