Carpentry Tools: Rafter Angle Squares

Speed the job of rafter or angle layout by using our Rafter Angle Square. With one number on our square you can frame a roof or a solar panel support, or layout stairs, cabinets, trim work, or many other construction projects.

Johnson's Rafter Angle Square has a handy 6" rule for quick measurements and scribing. The easy-to-read angle scale allows you to find any angle from 0 degrees to 180 degrees for many of your special designs such as carvings, picture framing, furniture, room dividers, shadow boxes, "cut-outs", routings and more. The rafter scales are laid out mathematically to take the time-consuming calculations out of your layout work. This gives you the accuracy you need with the convenience of using one number to work with. The Rafter Angle Square also makes an excellent right angle guide for an electric saw to run against.

Both the professional tradesman and the handyman will find the Rafter Angle Square convenient to use. All of the necessary instructions for basic roof construction are included in our accompanying PDF, along with other uses of the square such as stair layout and the framing of a solar panel support. An abundance of descriptive drawings and tables have been added, as well as an index for rapid access to each section.

Download the Rafter Angle Square Construction Guidebook 3.2MB PDF