Here are step by step instructions on how to cut gable studs:
Mark the top plates: This step is to level the roof rafters. You can use a level or straightedge to make marks on the roof rafters.
Measure the Gable Studs: There is a formula to calculate the length of each gable stud. The measurements will all be eight inches different from one another. The base of the gable studs will all be the same size.
Apply the formula: The formula is based on the pitch of the roof. In the video, a 6 in 12 pitch roof is used as an example. Here’s how to calculate the length of the gable studs with a 6 in 12 pitch roof:
First, divide the pitch by 12. In this case, 6/12 = 0.5
Then multiply the result by 48 (which is the length of the horizontal measurement). 0.5 x 48 = 24 inches
After that, divide the number by 3 (because we are looking for 16 inches on center measurement which is three increments). 24 / 3 = 8 inches
Cut the Gable Studs: After you received the length of each gable stud, you can now cut them.
How To Calculate Gable Stud Length For 16, 19.2 And Other On Center Spacing You Might Need
This video provides a math formula to calculate the gable stud length for various spacings. Here are the steps on how to do it:
Identify the slope of the roof. The slope is usually referred to as a 4 and 12, 6 and 12, or 8 and 12 roof pitch. This means that for every 12 inches you go up, the horizontal measurement is 4 inches, 6 inches or 8 inches accordingly.
To calculate the difference in height between the gable studs, multiply the spacing between the studs (e.g., 16 inches) by the rise per foot (e.g., 4 inches for a 4 and 12 roof pitch). Then divide the result by 12.
For example, if the spacing between the studs is 16 inches and the rise per foot is 4 inches, then multiply 16 inches by 4 inches to get 64. Then divide 64 by 12 to get 5.33.
Add this number (5.33 inches) to the length of each gable stud to determine the length of the next gable stud spaced 16 inches on center.