Stanley’s four-foot folding square may not be the newest tool in the truck, but when you need it, this great tool does its job like nothing else can. If you want to check if that wall you framed is square, or make sure your floor tile isn’t out of line, you’re not going to pull out a 7″ layout square — you’re going to grab your folding square.
Stanley makes their folding square from aluminum, for portability and corrosion resistance. It folds into a slim four-foot-long stick, so you’re not carrying a giant awkward triangle around. When unfolded it gives you one 90°, two 45° angles, and two equal-length four-foot sides. After the day’s done, hang the square up out of the way with its hang hole.
If you’re in the market for a folding square, Stanley’s version will run you between $25 and $35.