The Johnson 18cm Metric Johnny Square® is crafted from solid aluminum with CNC-machined edges. Its EZ-Read™ anti-glare finish ensures clear visibility in full sun or shade, while the continuous scribing notches and etched protractor scale make it easy to mark and cut with confidence.

This rafter square doubles as a saw guide for cross cuts, angled cuts, and rip cuts, while integrated distance and angle scales simplify stair layouts. With convenient 2x4 board dimension markers and a rugged construction, the Johnny Square® is an essential tool for builders and contractors.

Specifications

• Material: Aluminum
• Finish: EZ-Read™ anti-glare matte black anodized
• Graduations: Hi-visibility laser etched, 5mm increments
• Scribing Notches: Continuous, 2cm to 12.5cm in 5mm steps
• Special Markers: 2x4 board dimension references
• Edge: Thick edge for direct saw guide use
• Applications: Framing, stair layout, cross cuts, angled cuts, rip cuts, hip/valley/jack rafters