Stanley 45-910 Rafter Square 24 Inch Blade Steel

Product Description

The STANLEY 45-910 is a steel rafter square designed for layout, marking, and angle work in framing and carpentry applications. The tool features a 24-inch blade length and a 16-inch base length, giving carpenters and contractors a reliable reference for common rafter cuts, stair stringers, and roof pitch calculations. The base is 1.5 inches wide and the blade is 2 inches wide, providing stable contact on dimensional lumber. The buffed finish reduces glare and resists surface corrosion under typical jobsite conditions. At 2 pounds, it is substantial enough to stay in place during marking without being cumbersome to carry on a tool belt.

The STANLEY 45-910 is suited for residential and light commercial framing work. It is commonly used by carpenters, framers, and general contractors when laying out rafters, cutting angles, and scribing lines on lumber. The graduated scales on both face and back allow for direct reading of common and hip-valley rafter tables without conversion. Face graduation increments include 1/16 inch and 1/8 inch; back graduation increments include 0.1 inch, 0.083 inch, and 1/16 inch.

Key Features

• 24-inch blade length for full-span layout on standard dimensional lumber
• 16-inch base length for stable registration against framing members
• Steel construction with buffed finish for durability and reduced glare
• Multiple graduation increments on face (1/16 inch, 1/8 inch) and back (0.1 inch, 0.083 inch, 1/16 inch)
• 1.5-inch base width and 2-inch blade width for consistent edge contact
• Compact single-piece design — no moving parts to wear or go out of square

Compatibility

Designed as a standard rafter square for use with dimensional lumber in residential and commercial framing, roofing, and stair layout applications.

Installation Notes

Installation of a rafter square is not required, but proper use and storage will extend the life of the tool. Carpenters should verify the square is free of burrs or bends before use, as damage can affect measurement accuracy. Store flat to prevent warping and keep the graduated markings legible. No power tools or fasteners are required to use this layout tool.