The Figure-8 On a Bight creates a load-carrying loop in the rope. Because you form it from a bight, you do not need to thread the rope end around an existing object first.
That makes it useful for clipping a carabiner into the finished loop, connecting to anchors or systems, and creating a clean loop that is easy for the group to inspect.
PROS
• Creates a secure loop for clipping into anchors, carabiners, or harness systems.
• Easy to identify and inspect.
• Usually straightforward to untie after normal loading.
CONS
• Bulkier than some alternatives.
CAUTION: Dress the knot carefully. A recognizable knot is not automatically a correctly dressed knot.
CANYONEERING USAGE
Create a fixed loop at the end of a rope for clipping to an appropriate carabiner or anchor system.
Create a strong, easy-to-inspect attachment loop without needing access to the rope end.
Use as an attachment point in hauling, lowering, or rescue systems when the chosen system calls for a fixed loop.
Create a master or connection loop in rope-based rigging where a Figure-8 on a Bight is appropriate.
ADDITIONAL READING:
• CanyoneeringUSA – Figure Eight on a Bight and Variations
• Petzl – Knots (Figure-Eight for the Anchor)
• CMC Pro – Learn How to Tie a Figure 8 on a Bight
• The Mountaineers – Standard Techniques
• CMC Pro – Popular Knots and Bends for Rope Access
• CMC Pro – Evaluating Rescue Knot Efficiency in 11 mm General Use Ropes
FIGURE-8 KNOT ON A BIGHT
01
Fold the rope to create a bight, keeping the two strands parallel and free of twists.
02
Cross the bight over the doubled standing strands to create the first loop.
FIGURE-8 KNOT ON A BIGHT
03
Carry the bight around and behind the doubled standing strands, keeping both rope sections together.
04
Bring the bight back to the front and pass it through the original opening as shown.
FIGURE-8 KNOT ON A BIGHT
05
Pull the bight through and begin dressing the knot. Keep the four rope sections neatly side by side with no unnecessary crossings.
06
Snug the knot by pulling on the standing strands and the loop. The finished Figure-8 should be compact, symmetrical, and easy to inspect.
FIGURE-8 KNOT ON A BIGHT
07
Compare the strand path with Steps 5–6. The photo below is a look-alike, NOT a properly tied Figure-8 on a Bight. If the path does not match, untie it and start over.
KNOT GUIDE