Gable Roof Rafter Layout

Discover the pros and cons to multiple roof designs.

Gable roof rafter layout.

The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. 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. This will the first point of the rafter measurement line. 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.

Start at the ridge. Steeper roofs require more materials to build. Along the top center of the house there is a beam to which are attached the rafters. Clamp stair gauges to the framing square to align rise and run measurements with the.

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. The drawings and the size of the rafters are generated in real time. The calculator provides online calculate the length of rafters a gable roof. Overhang enter the horizontal overhang including the thickness of the fascia board.

Measure down y height from the long point of the rafter cut and make a mark. 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. Online calculator produces an accurate calculation of the rafters online calculates the sizes of rafters for the roof. Let s consider a basic gable wood roof framing design.

Most gable roofs have a slope between 3 12 in 7 6 30 5 cm vertical rise for every 12 in 30 cm horizontally. Learn the 1 rafter design that will guarantee your roof that is safe and strong for years to come. Enter or select the slope of the common rafters. Stepping off the rafter step 1.

Flip the square to mark the. This is our ultimate roof rafter guide for people designing and building an off grid cabin or tiny home. Each rafter is in turn fastened to the top of the exterior structural walls. Building width enter the total width of the building.

The right angled notch that fits over the top of the wall is. Plumb and seat cuts complete the bird s mouth. 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. Here we have a wood framed gable roof.

Use the saltbox roof if you want different overhangs for the front and rear roofs.