Which knot is safely used for tying the ends of two dry ropes of the same size?

The square knot is specifically designed for securely tying the ends of two ropes of the same diameter together. This knot is known for its simplicity and effectiveness when the ropes being tied are of similar size. It creates a reliable joint that lies flat, making it easy to untie after use, given that the knot has not been under severe load.

While other knots, such as the bowline, clove hitch, and sheet bend, have their own specific uses—like creating fixed loops, securing objects to poles, or tying dissimilar rope sizes, respectively—the square knot excels in situations where uniformity in rope size is present. Its structure allows for a secure binding that keeps the ropes together under tension while also ensuring that it can be readily untied when needed, which is essential for many applications in rope work.