Check the listing for details. 4 Pack Stair/Square Gauge Set for Framing Square, Stair Stringer Layout Tool for. Condition: New, Made in United States. Listed at 17.78 USD. Make accurate cuts and measurements with this 4-pack stair gauge set for framing squares. Designed for carpenters and DIY users, these gauges securely clamp onto framing squares to assist with stair stringer layout, rafter angles, and repeat measurements. Constructed from durable aluminum alloy, they provide long-lasting performance and precision for woodworking and construction projects. Perfect for framing, roofing, stair building, and layout work.