If the Constrictor Knot is strong, then the Double Constrictor Knot is even stronger.
It’s tied similar to the Constrictor Knot but has an extra riding turn around the object that makes it clamp down even harder.
It’s such a fierce binding knot that can crush fragile objects, and it is often difficult to untie—needs to be cut off most of the time.
Let’s learn it in detail.
Double Constrictor Knot Details
Type: Binding Knot
Other Names: None
ABoK Reference: #1252
How to Tie a Double Constrictor Knot
- Pass the rope around the object.
- Bring the working end back over the standing part.
- Make a second turn around the object beside the first turn.
- Pass the working end over the standing part.
- Feed it through both riding turns and the first wrap.
- Tighten the knot.
Double Constrictor Knot Step by Step
Pro TIP
If you intend to use the knot permanently, use the Marlinspike Hitches on both ends to tighten the knot.
Here’s how I do it:
Grab and pull one handle of the marlinspike hitch with your hand, and push away the other handle with your feet.
Once the required binding is reached, you can trim off the extra rope.
Pros & Cons
- Most secure binding knot
- Does not slip under pressure
- Difficult to untie
- Can damage fragile objects
Application and Uses
- Boating and sailing: Emergency repairs and holding broken parts together.
- Whipping: Keep the rope from unravelling until permanent repair is made.
- Repairs: Repair broken tillers, hose clamps, or clamp cables for temporary repairs.
- Camping: Secure bundles of sticks or poles together.
Double Constrictor Knot Tied in the Bight
Sometimes the free end of the rope may be buried, stuck, or tied to something else.
The good news is that you can tie this knot in the bight, given that the object you want to tie the knot to is free.
But it’s not easy. I messed this up so many times before I got it right.
Here’s a short video to get you started:
Liked the knot? Bookmark it or share it with a friend who always uses duct tape for everything. They will thank you later!
