Square Knot | Reef KnotThe Reef Knot or Square Knot is quick and easy to tie; it is a good knot for securing non-critical items. Not to be trusted to join two ropes together. This knot was used for centuries by sailors for reefing sails, hence the name Reef Knot, and tying things aboard ship. It is important that this knot should not be used as a bend (for tying two ropes together). It is unsafe and can come apart. Be sure to form the square knot and avoid tying a granny knot, by making sure that both parts of the rope, the standing line and the free end, exit the knot together.
Square Knot - Reef Knot
1. Tie two over hand knots. First, right over left and twist. Then left over right and twist.
2. Make sure both parts of the rope exit the knot together!
See animated Square Knot below.
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Disclaimer: Any activity involving rope can be dangerous and may even be life threatening! Knot illustrations contained in this web site are not intended for rock climbing instruction. Many knots are not suitable for the risks involved in climbing. Seek professional instruction. Many of these knots have histories of use tracing back hundreds of years. However, many critical factors in their use today cannot be controlled, including: the appropriateness of knots used in particular applications, the age, size, and condition of ropes (knots weaken the rated breaking strength of rope anywhere from 50% to as much as 80%, even more in the case of old and worn rope); and the accuracy with which these descriptions have been followed. No responsibility is accepted for incidents arising from the use of this material.