Granny knot

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Granny knot
Names Granny knot, False knot, Lubber's knot, Calf knot, Booby knot
Category binding
Related Reef knot, Thief knot, Grief knot
Releasing often jams
Caveat Should not be used as a bend. Inferior to reef knot for binding purposes, it can release suddenly and unpredictably.
ABoK #1206

The granny knot is a binding knot, used to secure a rope or line around an object. It is considered inferior to the reef knot, which it superficially resembles. Neither of these knots should be used as a bend for attaching two ropes together.

When attempting to tie a reef knot, it is easy to produce a granny knot accidentally. This is dangerous because the granny knot can slip when heavily loaded. A tightened granny knot can also jam and is often more difficult to untie than the reef knot. It is better to tie a reef knot in nearly all circumstances. One way to distinguish them is that in the reef knot each loop passes completely over, or completely under (not through) the neck of the other.

The reef knot is commonly taught as left over right, tuck under then right over left, tuck under. The granny knot is the first step repeated twice, left over right, tuck under. This is a very common mistake made by people learning to tie a reef knot.

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