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Stopper Knot

A stopper knot is tied at the end of a rope to prevent the end from unraveling, slipping through another knot, or passing back through a hole, block or a device. This version, the Ashley Stopper knot, also known as the Oysterman's stopper, is a knot developed by Clifford Ashley around 1910. It makes a well-balanced trefoil-faced stopper at the end of the rope, giving greater resistance to pulling through an opening than other common stoppers. Essentially, the knot is a common Overhand noose, but with the end of the rope passing through the noose eye, which closes upon it. Also see the Double Overhand Stopper Knot.

Stopper Knot

Stopper Knot Tying Instructions

  • Form a small loop at the end of a line by running tag end over standing line.

  • Tie an overhand knot around standing line.

  • Pull overhand knot tight and feed tag end through noose (loop) end.

  • Pull tag end all the way through and slide knot down tight.

  • Pull both ends tight.

Swiffy Output

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 factors affect knots including: the appropriateness of knots and rope materials used in particular applications, the age, size, and condition of ropes; and the accuracy with which these descriptions have been followed. No responsibility is accepted for incidents arising from the use of this content.