DIY Secrets

Binding knots

Reef Knot / Square Knot

A binding knot often used to tie two ends of the same rope around an object, but commonly misused as a bend.

  • Beginner
  • Binding knots
  • 2-4 minutes
  • Safety: caution

Good for

  • Light binding around a parcel or bundle
  • Tying two ends of the same rope after wrapping
  • Temporary non-critical fastening

Avoid using it for

  • Joining two separate ropes for load-bearing work
  • Critical loads
  • Slippery rope or situations where capsizing would be dangerous
Diagram placeholder: future step-by-step illustration or 3D knot viewer.

How to tie it

Diagram placeholder: future step-by-step illustration or 3D knot viewer.

  1. Cross the right working end over the left and tuck it under.
  2. Cross the left working end over the right and tuck it under.
  3. Pull all four parts gently so the knot lies flat and symmetrical.
  4. Check that it is not a granny knot, which sits twisted and is less reliable.

Common mistakes

  • Using it to join two ropes where a bend is needed.
  • Tying a granny knot by repeating the same crossing direction.
  • Pulling unevenly so the knot capsizes or distorts.

Practical DIY uses

Use a reef knot for light binding where the rope wraps around an object and both ends belong to the same rope, such as tying a soft bundle or securing a temporary cover in calm conditions.

Safety note

The reef knot is commonly misused and is not a secure bend for critical loads. Do not rely on it for lifting, towing, life-safety or any situation where a failed knot could injure someone or damage property.

Reference: ABOK #1204