Rafter Square
A rafter square, also known as a framing or carpenter's square, is a versatile tool used in carpentry and woodworking. It typically consists of a flat, L-shaped piece of metal, wood, or plastic. One arm, called the tongue, is longer than the other, called the body. The intersection of the tongue and body forms a 90-degree angle, and the square is marked with various scales and measurements.
Carpenters and builders use the rafter square to measure and mark angles, make straight cuts, check for squareness, and assist in various framing and layout tasks. The tool is particularly useful in roof framing for laying out and cutting rafters, which are the sloping beams that support a pitched roof. The rafter square helps ensure precision and accuracy in construction projects.