Sometimes referred to as a rafter square, the Speed Square facilitates ... (This is also known as “rise” over “run.”) A 45-degree angle would be 12 on 12. Here I’m using the 6, for ...

For L.B. of Whitehall, it's a a triangular-shaped measuring tool used to mark straight lines and virtually any angle in construction work. One popular brand is Speed Square. like on rafters.

If you don't have a power miter saw or radial-arm saw, guide your circular saw with a rafter-angle square such as a Speed Square when crosscutting the stock to finished size. Cut the top strips ...

Learn More › Also known as a rafter square or triangle square ... getting the right angle on every side is tricky work that can be simplified with your speed square. Cutting crown moldings ...