JessEm Stainless Steel Saddle Squares — Perfect Layouts, Every Time

Saddle squares have been essential layout tools since the days of ancient Egypt. Unlike standard measuring tools that only mark a single surface, saddle squares solve a critical challenge: transferring precise markings across corners onto adjoining surfaces. The result? Perfectly aligned lines every time—no guesswork, no misalignment. Saddle squares are designed to straddle 90° corners, ensuring their edges align seamlessly from one side to the next. With a simple motion, you can mark two mating surfaces accurately. This eliminates errors and enhances precision, making them indispensable for both novice and experienced woodworkers.