Nov 9, 2012 · The values on the calculator that we use for common roof framing are: Pitch, Rise, Run, and Diagonal. If you have any two of those values, the calculator will quickly figure out the rest of the …

Step-by-step guide to laying out a common rafter. For simple gable or shed roofs, you need to learn this basic building block of roof framing.

Below is a list of rafter lengths for building widths from the outer wall to the center peak. Measure the length of the rafter (before adding the overhang) and mark the rise 3/12 in the same direction as the …

May 15, 2025 · In this article, we will look at what a common rafter is, the differences between principal and common rafters, and the different terminologies used in common rafters.

A basic knowledge of rafters helps determine what scale and what number on the tool to use. The information in the following rafter manual will help when using these tools.

In today’s video, Beginner Rafter Layout | Speed Square | Common Rafter, we’re tackling an important beginner lesson: how to lay out and cut a common rafter.

Learn to calculate, cut, and install common rafters correctly for a strong, structurally sound roof frame.

Mar 21, 2025 · A rafter is an important structural component for roof construction, and if you’re planning for a project, you might be wondering about the proper rafter spacing and sizing.

Jul 7, 2022 · Ridge height and common rafter layout. On the first line of the rafter table (length of common rafters per foot run), the base of the triangle for all the entries is 12. The altitude is the …

Jun 8, 2024 · Below is an image of the common rafter as it is used in roof framing. If you familiarize yourself with the components that make up the rafter it should assist you in this roof framing task.