The SUMNER Aluminum Square is a durable, precision layout tool designed for fabrication, welding, and general construction tasks. Marked with both imperial and metric measurements, it provides reliable accuracy for marking and measuring right angles across a wide range of jobsite applications.
Constructed from lightweight, corrosion-resistant aluminum, the square delivers long-lasting performance while remaining easy to handle. Its 24 × 16 in. (610 × 406 mm) size offers ample surface area for accurate layout work, and etched markings stay clear over time for consistent measurements.


