JOHNNY SQUARE® MACH-1™

Johnson Level has introduced a well-thought-out upgrade to the traditional rafter square with its 7-1/4” Johnny Square^® MACH-1™. Built from solid aluminum and CNC-machined for accuracy, it brings together smart features like the Smart Mark™ Cutout system and a built-in level vial to help streamline common layout tasks. 

The Smart Mark™ system includes clearly etched markings, scribe notches every 1/8” and helpful cutouts for laying out 1X through 6X lumber and LVLs. Standard dimensions—such as 1-1/2”, 3” and 4-1/2”—are clearly marked, along with angle slots for 22.5°, 30°, 45° and 60°. Roof pitch notches and a 7-1/4” frame allow marking across the full width of 2×8 material. 

The integrated level vial offers 320° of visibility for checking level, plumb or roof pitch. An inch-wide heel adds measuring surfaces on both sides and the bottom, each with 1/16” scale graduations. Its matte black anodized finish cuts down on glare and helps protect the square from rust and wear. Click here to see a short video showing all the features of the MACH-1. 

We supplied our samples to a local framing contractor. Testers found the tool easy to work with and appreciated how it combined multiple functions into a single piece. One noted how convenient it was to scribe, check level and lay out framing dimensions without reaching for a second tool. 

The Johnny Square^® MACH-1™ is a practical addition for framing crews and builders who rely on quick, accurate layout. Retailers should consider it for their pro-focused tool mix and the advanced DIYer.