How to Make a Prusik Cord
1. Purchase 5mm nylon accessory cord. Spectra/Dyneema is not recommended due to it’s low melting point unless specifically designed for this application. You’ll also need scissors or a knife, a lighter, a tape measure, and electrical tape.
Equipment for Making Prusik Cord
2. Cut a length of cord about 60″ (152cm) long. This will produce a Prusik cord of about 20 inches in length. This is a good length for a general purpose cord for use as an Auto-Bloc for rappelling. Longer Prusik cords are also sometimes used in other applications.
Loop the cord around so that the two ends are overlapping. Overlap the cord by about 10″ (25cm).
Cord for Making Prusik Cord
3. Using one end of the cord, tie a double fisherman’s knot around the other end. Use a triple fisherman’s knot with cord with a slippery sheath. Be sure to leave about a 1 to 2″ (2.5 to 5cm) tail coming out of the knot. Make sure the knot is very tight.
One Triple Fisherman’s Knot in Prusik Cord
4. Tie a double (or triple) fisherman’s knot in the same way on the other end of the cord. Be sure to leave about a 1 to 2″ (2.5 to 5cm) tail coming out of the knot. Make sure the knot is very tight.
Two Triple Fisherman’s Knots in Prusik Cord
5. Pull the cord until the fisherman’s knots are tight against each other.
Fisherman’s Knots Together on Prusik Cord
6. Tape the tails to the loop so that they don’t get snagged.
Finished Prusik Cord
7. You now have a Prusik cord. Have an experienced climber check it before use.
Looking for more rock climbing how to’s? Check out How to Wash a Climbing Rope.
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