Questions tagged [prusik]

A Prusik is a friction knot used to grip a section of rope. It is typically used for ascending ropes or providing a backup lock to a belay device.

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2 answers
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Is it safe to depend only on a prusik?

This weekend I got myself into (for me) a hairy situation while rappelling. I got to a set of rap anchors that I needed to transfer to in order to get down to the next ledge, so I transferred myself ...
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1 vote
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How to do a prussik with end of cordellete only? [duplicate]

Doing a Prussik with a small cordellete that is tied together in a O is relatively easy. Now some maneuvers require to do a Prussik/blocking knot with only one side of a long cordelete... how do you ...
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1 answer
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How to tie a Purcell Prusik from a single end?

There is the regular Purcell Prusik, which can be used for adjustable tethers or create foot loops for ascending a rope, but it is also useful to know how to tie it with only one end of the rope ...
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7 votes
1 answer
1k views

How to tie a Purcell prusik?

One of the more useful knots for climbing is the Purcell prusik (related to but not a regular prussik), which can be used as an adjustable tether or for ascending a rope among other things. How would ...
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10 votes
2 answers
935 views

In canyoning, [why] do people skip a backup prusik?

I am used to abseiling with a prusik cord, which gives me protection for the case I lose control of the descent speed. However, I have heard that in canyoning, in some situations, using the prusik is ...
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12 votes
2 answers
4k views

How do I know when to choose between a Klemheist or prussik knot?

Both effectively do the same job, grip a rope as an auto bloc or an ascender. What are the pros and cons of each? Why/when would I choose one over the other?
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10 votes
1 answer
2k views

What is the difference between accessory cord and prusik cord?

Aside from Prusik cord being a different weave, what's the big difference? When would I choose one type of cord over the other? Is there anything I shouldn't I use the different types of cord for? ...
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9 votes
3 answers
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Abseiling on one rope: should I attach the prusik to the other one?

We were abseiling into a cave (about 15 metres height) using a rope hanged by its middle from an anchor: _ /o\ | | | | | | | | | | My experience on abseiling is mostly from climbing, where I ...
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1 vote
0 answers
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How do to a safety knot when abseiling with 2 ropes? [duplicate]

If I'm abseiling with a double rope what's the common way to add a safety knot? Is it a prusik knot around the 2 ropes instead of 1 or something like 2 prusiks?
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10 votes
2 answers
568 views

What is a bloquers?

Simple question, which has been prompted from this answer. What is a bloquers? I'm guessing it's some kind of prussik and it's a French term. But I'm not familiar with it. A quick google search ...
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12 votes
3 answers
3k views

How to arrange 2 Prusiks when ascending a rope?

If I want to ascend a rope with minimal equipment, I use 2 Prusiks: one tied to my harness, and the second one for my foot. However, there are two ways to arrange the Prusiks on the rope - the foot ...
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16 votes
5 answers
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Knot to turn cord into loop (load bearing)

What's the best knot for turning a piece of cord into a loop? The cord would then be used for a prusik so needs to be very secure and load bearing.
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16 votes
2 answers
35k views

What's the minimum diameter cord to use when climbing a rope using a prusik

If I'm using two prusik's to climb a rope (one as a foot loop and one attached to harness directly) What's the minimum diameter of cord I should be looking for to remain safe?
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