The Figure 8 on a Bight is one of the ways to make a Figure 8 loop.
It’s used to build anchors or to attach the rope to a carabiner, harness, or belay device.
And the best part?
You don’t need access to the rope’s end, so it’s perfect for mid-rope connections.
Let’s learn it in detail.
Figure Eight on a Bight Details
Type: Loop
Other Name: Figure 8 Loop, Flemish Loop
ABoK Reference: #1047
How to Tie a Figure 8 on a Bight Knot
- Make a loop with the bight of the rope.
- Pass the working end under the standing part.
- Feed the bight through the loop.
- Tighten the knot.
If your knot looks like a number 8, you’ve done it right.
Make sure the loops are parallel and don’t cross each other. Dress the knot properly and leave at least six inches of tail to be on the safe side. If you want extra security, add a backup knot like the Overhand Knot or Double Fisherman’s Knot.
Figure 8 on a Bight Step by Step
Figure 8 on a Bight Video Guide
Pros & Cons
- Strong and easy to tie.
- Reliable for making mid-rope connection.
- Can jam after heavy loading and difficult to untie.
- Not meant to bear loads in two opposing directions. It can cause the knot to roll under heavy loads.
Where Do You Use It?
The Figure 8 on a Bight is used in climbing for anchor setups.
It’s used in the following applications:
- Canyoning
- Rock Climbing
- Caving
- Firefighters rescue works
- Decorative use
- Anchor building
- Fixing rope for rappelling
Other Similar Loop Knots
Directional Figure 8
The Directional Figure 8 creates a loop in the middle of the rope.
It’s designed to take the load in one direction only. Otherwise, it can capsize and function as a Noose knot.
In practice, it is used to haul items or create a handle in the middle of the rope.
Alpine Butterfly Knot
The Alpine Butterfly Loop is a secure alternative to the Figure 8 on a Bight.
It also forms a secure loop in the middle of the rope, and also easy to untie after a heavy load.
Figure 8 Follow Through Loop
The Figure 8 Follow Through Loop is one of the ways to create a Figure 8 loop.
It’s used as a standard tie-in knot in climbing to secure the rope to the harness, like the carabiners.
Figure 8 Bend
The Figure 8 Bend does not form a loop, but is used to connect two ropes together.
It’s listed here because there is a misunderstanding that Figure 8 on a bight can be used to join two ropes together.
The Figure 8 on a bight should NEVER be used as a bend knot. NEVER!
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