CH Hanson 3 ft. x 4 ft. x 5 ft. 90 Degree Aluminum Folding Layout asquare

Increase the accuracy of virtually every construction layout task with this SuperSized folding Square. Instead of using the old 3-4-5 triangle method of establishing a right angle a task that generally requires two people simply unfold the A-Square. Accurate to 1/32in 4 feet it helps you quickly verify squareness when laying out floor plates ceramic tile kitchen cabinets and more. A-Square is made of aircraft quality aluminum for durability and light weight and features a patented positive self-locking mechanism for easy erection and storage.Made in USA.