Square Knot
Also called: reef knot
A flat knot for tying a bundle or a bandage, symmetrical and easy to tie but not safe for joining ropes that carry a load.
- Type
- Joining Knots
- Difficulty
- Easy
- Good for
- Camping, Hiking
What it is for
- Tying a bundle, a roll of gear, or a bandage
- Tying two ends of the same cord around an object
- A first knot for beginners
How to tie it
- Take one end in each hand. Cross the right end over the left and tuck it under, as in the first half of tying a shoe.
- Now cross the left end over the right and tuck it under.
- Pull both ends so the knot lies flat. Each end should leave the knot on the same side as its own standing part.
There are no diagrams on this page yet. Tie it along with the steps using a short piece of cord, and compare your result with a photograph or an instructor before you rely on it.
Tips
- A helpful reminder is right over left, then left over right.
- If the knot sits crooked and one end sticks out the wrong way, you have tied a granny knot.
When not to trust it
- It slips easily with slippery rope, ropes of different sizes, or a jerking load.
- It is not a safe way to join two ropes. Use a sheet bend or a double fisherman's knot instead.
- Do not use it for anything life-safety related.
Often confused with
- Granny knot: made by repeating the same crossing twice. It looks similar but slips and is much less secure.
- Sheet bend: a better choice for joining two ropes.
Field notes
The square knot is useful for tying a bundle or a bandage, but it is not a trusted way to join ropes. It is easily mistaken for the weaker granny knot, so check that the finished knot lies flat and symmetrical.
Related guides
This page explains how to tie an everyday knot. It is not training for climbing, rappelling, tree stand fall protection, or rescue. If a failure could injure someone, learn from a qualified instructor and use equipment rated for the job.