Gable Roof Rafter Layout

Here we have a wood framed gable roof.

Gable roof rafter layout.

Each rafter is in turn fastened to the top of the exterior structural walls. The calculator provides online calculate the length of rafters a gable roof. Learn the 1 rafter design that will guarantee your roof that is safe and strong for years to come. Start at the ridge.

Measure down y height from the long point of the rafter cut and make a mark. 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. The right angled notch that fits over the top of the wall is. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.

Rafter layout this article will discuss a gable roof without valleys or dormers because it s the most common and the easiest for a first time builder to tackle. After you determine the rise span run line length and pitch the next step is to lay out the rafters or mark the cuts on a pattern rafter to create the roof. Overhang enter the horizontal overhang including the thickness of the fascia board. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it.

Clamp stair gauges to the framing square to align rise and run measurements with the. Roof framing rafter layout. Online calculator produces an accurate calculation of the rafters online calculates the sizes of rafters for the roof. Steeper roofs require more materials to build.

Let s consider a basic gable wood roof framing design. Building width enter the total width of the building. Plumb and seat cuts complete the bird s mouth. Most gable roofs have a slope between 3 12 in 7 6 30 5 cm vertical rise for every 12 in 30 cm horizontally.

The drawings and the size of the rafters are generated in real time. This will the first point of the rafter measurement line. Discover the pros and cons to multiple roof designs. Flip the square to mark the.

After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors. Roof pitch or slope is measured in a vertical to horizontal ratio. Along the top center of the house there is a beam to which are attached the rafters. Stepping off the rafter step 1.

Enter or select the slope of the common rafters.