PUIOCO measuring tool simplifies stair tread fabrication. It features a semi-open 12-inch hinged end with enhanced nut-tightened mounting. Accurately and quickly transfers shapes to materials, while the streamlined form makes measurements easier. Side stops with magnetic catches allow fast width adjustment and securing. Adjustable length from 24 to 64 inches with three brass screws offers versatility for various projects. Rotates 0–360° to match stair angles while maintaining stability. Made from aluminum alloy with precision laser markings for a perfect balance of strength and reliability.