Which knot is used to join webbing of the same or different sizes together?

The water knot is specifically designed for joining two lengths of webbing, regardless of whether they are of the same size or different sizes. It creates a secure connection that is particularly effective for flat webbing, making it a popular choice in situations such as climbing or rescue operations where strength and reliability are crucial. The water knot is formed by tying a simple overhand knot with two lengths of webbing, which results in a strong and stable joint that is less likely to slip or come undone.

While other knots have their specific purposes, they are not as suited for the task of joining webbing. A sheet bend, for example, is more commonly used for connecting different types of rope, especially when one is thicker than the other, but it is not ideal for webbing. The tag line is a tool used to control or guide a load and doesn’t refer to a type of knot. The bowline creates a fixed loop at the end of a rope but does not effectively join two webbing pieces together. Therefore, the water knot stands out as the optimal choice for this purpose.