Paarluutsolmu

Paarluutsolmu, also known as the reef knot or square knot, is a simple binding knot used to join two ends of a rope. It is a secure knot when tied correctly, but it can slip if not tightened properly or if used with ropes of different diameters or materials. The knot is formed by tying a left-over-right overhand knot followed by a right-over-left overhand knot, or vice versa. The key to its security lies in the two working ends of each rope lying parallel and on the same side of the standing parts.

The paarluutsolmu is widely used for general-purpose binding and securing loads. It is commonly found in sailing, camping, and general utility applications. However, it is not recommended for critical life-support situations or for joining ropes that will be subjected to significant, uneven, or shock loads, as it has a tendency to capsize or work loose under such conditions. If a more secure bend is required, alternatives like the sheet bend or double sheet bend are often preferred. The knot's simplicity makes it easy to learn and tie, contributing to its widespread use in non-critical applications where a quick and easy join is needed.