The Premium Garage Door Torsion Spring Gauge is a one-of-a-kind, professional-grade tool designed exclusively for garage door technicians. Its magnetic ruler-style design makes spring measurements quick, accurate, and reliable—helping you avoid costly mistakes and callbacks.

Using it is simple: place the gauge directly on the spring, count 20 coils, and instantly determine the exact wire size. Then, use the built-in markings to confirm coil diameter. A clear hand-direction indicator shows right-wound or left-wound at a glance, eliminating confusion.

The magnetic backing adds real-world convenience: it sticks firmly to the spring for hands-free measuring or stores neatly on any steel surface in your truck or workshop.

Unlike generic rulers, this gauge is purpose-built for torsion spring sizing. Made from chemical-resistant fiberglass with gold-plated numbering, it’s tough enough for everyday field use while maintaining a professional look. Compact, lightweight, and technician-approved, it’s the only gauge you’ll ever need for precise torsion spring work on residential and commercial doors.