Two double overhand knots are tied in strangle knot form, one around the standing part of the other. This knot is also known as the double fisherman’s knot or grapevine knot. As a result, it is stronger than the fisherman’s knot. It is primarily used as a joiner between two ropes, but can also be tied to a single rope end to form a loop. Bachmann knots and Prusik knots are examples of such knots. To assist rock climbers, it is used to create cordelettes.
How to Tie a Double Fisherman’s Knot
Watch this video to know how to Tie a Double Fisherman’s Knot
Tips
- A symmetrical structure can be seen from the back of the knot.
- For ropes with high modulus that are used for load bearing, the triple fisherman’s knot is recommended.
- Its breaking strength and efficiency have been tested with specific ropes, which have an average breaking strength of around 5820 pounds and a depletion rate of 46.1% (54 %).
Uses
- Fishermen join two fishing lines together
- Connects two climbing ropes in a powerful and reliable way
- During a search and rescue operation
- Even after abseiling at full rope length, this device allows for easy retrieval of the rope
- Keeping important knots backed up
- The process of creating termination knots by arborists
- Tieing webbing
- Making paracord necklaces and bracelets
- Wedding knot-tying ceremonies

Alternatives
- Zeppelin bend – Less cumbersome to undo
- Figure 8 bend – Bulkier, particularly when stopper knots are included for additional security
Similar Knot
Sliding double fisherman’s knot – Sliding double fisherman’s knot are mainly used by arborists to provide an adjustable sling.
Frequently Asked Questions ( FAQs):
What is the purpose of a double fisherman’s knot?
This knot is primarily used to form high strength (round) slings of cord to connect pieces of a climber’s protection system.
How safe is a double fisherman’s knot?
Double fisherman’s knot is very safe as it is very strong and won’t let you fall that easily.
Is there a knot that Cannot be untied?
Yes, there is a knot that cannot be untied and that is double fisherman’s knot. It is easy to tie, but it is nearly impossible to un tie.
Is Fisherman’s knot strong?
Fisherman’s Knots (also known as Clinch knots) are among the easiest and strongest knots. One of the first knots that every fisherman should learn is this one. You can use it with both mono-filament and braided fishing lines.
How do you tie a double fisherman’s knot?
If you want to know how to tie a double fisherman’s knot check out this video.