Rockler Stair Tread and Shelf Gauge

The Rockler Perfect Fit Stair Tread and Shelf Gauge makes it easy for users to install or replace stair treads or stair risers, or to install shelves between two irregular walls. Just slide the gauge open till it fits in the opening, adjust the angle finders to lay against the walls, then use the gauge to transfer the angles and dimensions to your stair tread, stair riser, or shelf—no measuring required!

• Lets you lay out the length and angles of replacement stair treads or risers to fit between two walls—ideal for older houses where walls often aren't square
• Also great for installing shelves between walls and between built-ins
• Simple to use—adjust the length and swing out the angle-finder arms to lay against the walls
• Stops register jig against front edge of stair—lock everything in place with easy-to-grip knobs
• Sturdy extruded aluminum main body with steel extensions
• 12'' angle finders made of durable molded plastic with reference marks on edge
• Works on stair treads, risers or shelves from 26'' to 48''