Our 16 x 24 in. Aluminum Framing Square is stronger than steel and the most versatile framing square available. It features a 50% thicker frame for greater durability than competing steel squares. The 1-13 in. scriber notches allow you to easily and accurately measure and rip boards. High-visibility laser etched markings allow you to easily read measurements on the square. Angle finder markings allow you to set common pipe angles.