The ropes approach from above and below. Each working end will return beside its own standing part.
Basics · 7 steps
Tie two ends around a bundle with two opposite half knots.
Also known as Reef knot.
The square knot closes two ends around a package or bundle using opposite half knots. Reversing the direction of the second half is what produces the balanced, flat finish. Repeating the same direction instead makes a granny knot.
Its purpose is binding: the object helps support the knot while the surrounding rope holds the bundle. That is different from joining two ropes that will be pulled independently. For an end-to-end rope connection, start with a bend such as the sheet bend.
When to use it
Secure a wrapped package or light bundle.
Keep in mind
A binding knot; do not use it to join loaded ropes.
Check your knot
The second half knot reverses the first.
Each tail lies beside the standing part of the same rope.
The knot sits flat against the bundle.
How to tie Square Knot
Start with opposing ends
The ropes approach from above and below. Each working end will return beside its own standing part.
Bring the ends together
Bring the working ends toward each other, leaving room for the two half knots.
Tie the first half knot
Cross one end over the other and wrap it underneath. Both ends move together in this view.
Turn the ends back
Curve both ends back toward their own standing parts to begin the opposite half knot.
Tie the opposite half knot
Cross and tuck in the opposite direction. Repeating the first direction would make a granny knot.
Bring out the tails
Each tail leaves beside its own standing part: one pair above and one pair below.
Snug the two half knots
Draw the two opposite half knots together. Each tail stays beside its own standing part; use this as a binding knot.