How Do You Build A Roof Rafter

If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more.

How do you build a roof rafter. Possibly the most satisfiying part of the roof yet. The fourth step in the how to build a shed series this tutorial teaches you the necessary steps to building roof rafters. Laying out hip valley and jack rafters takes experience and skill but if you re building a simple gable or shed roof all you need is the common rafter the basic building block of roof framing. 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.

The first thing to determine is the pitch your roof will have and the span your roof needs to cover. Today we are tackling a big beginner lesson which is common rafter layout and cutting. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Just enter the dimensions of the roof rise and run to get started.

If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11. From cutting the rafter parts out to building a jig and assembling the rafters. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters. Anything beyond that you are looking at using 2x6s for most sheds.

To build a hip roof start by measuring the width and height of the building you re putting the roof on. Gusset to attach two rafters together. Common rafters are the most common type of rafter in construction. For example if your roof is 24 feet long you can have a 4 12 roof pitch.

The rafter assembly is made by using an o s b. A rafter is one side of the rafter assembly. To lay out a common rafter you need the pitch of the roof expressed in units of rise per foot of run in the gable roof example shown here a rafter with 6 in 12 pitch rises 6 in. Due to the width.

Then enter those measurements into an online roofing calculator to determine how long each common rafter will need to be. The roof rafters provide integral structural support to the roof. For every foot.