12" Professional Rafter/Angle Square

12" Professional Rafter Angle Square

Model: RAS-120

  • Solid aluminum body with CNC machined edges for greater accuracy and durability
  • Permanent graduations and numbers are easy to read
  • Thick edge is useful as a saw guide
  • Scribe notches starting at 1-3/4" transfer outside increments from pivot point
  • Low-glare, protective powder coated finish
  • 12" body spans wider boards simplifying layout and measurements
  • Complete instruction manual included with rafter tables
7" Johnny Square Professional Aluminum Rafter Square
7" and 12" Structo-Cast Rafter/Angle Squares


For the RAS-1 Product Manual Click Here (this manual can also be used for the RAS-120 and RAS-170B)

Johnson Level Rapid Response Center for Repair and Service

In the U.S., call 888-953-8357 from 8AM-5PM CT.  In Canada, call 514-695-7221 8AM-5PM ET.

Download RAS-120 High Resolution Image


RAS-1 - English (does not describe scribe notches)


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