Developed in 1931 by Dr. Karl Prusik, the prusik knot is primarily used to attach a cord loop to a rope in a way that allows easy adjustments. For this reason, the prusik loop knot is often termed as a type of friction hitch. The knot works perfectly when the load is being applied in any direction.
If you are thinking of using a prusik knot on your climbing rope, you need to understand how to tie the knot. By following the steps outlined below, you should have a prusik loop knot in a few minutes
Tying the Prusik Knot – Step by Step Guide
Before starting with the procedure for creating the prusik loop knot, you will need to make a cord loop with the double fisherman’s knot. If you are not new to fishing, you are probably familiar with most of the fishing knots, including the double fisherman’s knot. If you have never used the double fisherman’s knot on your fishing line, you can use the steps below to tie the knot:
How to Tie the Double Fisherman’s Knot
Note: For the procedure below, we will assume that you are using red and blue ropes.
- Make a loop with your red rope.
- Loop the red rope once more and feed its end into it.
- Using the blue rope, make a loop.
- Loop the blue rope again and then tuck its end into it.
- Using the tag ends, tighten the 2 individual knots.
- Pull the standing parts to draw both knots together.
When making the prusik loop knot, you will use the 2 ends of one rope as 2 different ropes. That is, bring the 2 ends together and assume that 1 end is the red rope while the other is the blue rope. After creating the loop, you will need to follow the steps below to make the prusik knot.
How to Create the Prusik Loop Knot
- After making the loop by following the instructions above, bring the junction point to the left of your thick central rope.
- Pass the junction to the right through the loop just formed.
- Turn the junction round your central rope three times.
- Take out the last loop formed and pass it to the left.
- Tighten your knot.
Tip: Most mountaineers recommend ensuring that the diameter of the cord is no more than half of the diameter of your rope. This will offer the best results.
Factors Affecting the Length of the Rope Used to Make the Knot
Numerous factors usually govern the rope length used when making the prusik loop. These factors include:
- What you will use the knot for
- The number of wraps used in the knot
- The rope diameters
- Height of the user
Professionals usually recommend using 1.2 to 1.5 meters length of a 5-millimeter cord on the majority of the thicker rope varieties.
Uses of the Prusik Knot
The knot has a wide range of uses. The main uses, however, include the following:
- It is mainly used in climbing because it can grab onto the beginner climbing rope more firmly. A longer prusik loop will reach out to support the foot of the climber while a shorter one is usually attached to the climbing harness for sitting.
- You can use it as a rappel or abseil backup.
- You can use it to secure essentials like water bottles and lights on your hammock ridgeline.
- While camping, you can use it to hang your tarp.
- During rescue work, the knot can help with ascending.
- The knot helps tree stand hunters and arborists.
- You can use it to create an adjustable anchor point.
- It is often used in safety lines, lifelines, and kites.
- It is used to make paracord belts.
Pros and Cons of Using the Knot
The prusik knot does have advantages and disadvantages. Understanding both will allow you to determine whether the knot is ideal for your situation.
- The knot offers fall protection.
- It can secure a pulley block system on the climbing rope.
- Although you can do it with a thin cord, the knot causes very little and, in most cases, no damage to the rope you are tying it to.
- The knot is not recommended for use when you are descending.
Variations to the Knot
There are two main variations to the prusik knot. These are:
- French Prusik Knot – This knot works with webbing and cord. To move it, you have to weigh it.
- Purcell Prusik Knot – This knot makes use of a pair of Prusik loops.
Globo Surf Overview
The principal use of the prusik knot is to allow the main rope to be climbed. 2 prusik loops are alternately slid up a static loop, allowing you to move up. This suggests that the knot is extremely important for climbers.
If you are thinking of making climbing your new hobby, understanding how to tie the prusik loop knot is extremely important. Above, we have shown you the steps you need to follow.