A carpenter's square, also known as a framing square, is a tool used in woodworking and construction. It typically has a right angle, with one arm longer than the other, allowing for precise measurements and angles. This tool is essential for ensuring that corners are square and for laying out cuts accurately. Carpenter's squares are often made of metal or wood and can feature measurement markings in both inches and centimeters. They are commonly used by carpenters and builders to create frameworks for structures, ensuring that everything is aligned correctly for stability and aesthetics.