Key takeaways
- A cordelette is a long loop of cord used to build and equalize multi-point climbing anchors.
- It ties several pieces of protection together into one redundant master point.
- It distributes load across the anchor points for strength and security.
- Also useful for rescue, extending rappels, and improvised systems.
French diminutive of 'corde' (cord).
What a cordelette is
A cordelette is a long loop of accessory cord — commonly 5–7mm cord around 5–7 meters, tied into a loop with a double fisherman’s knot. Its main job is building and equalizing climbing anchors from multiple pieces of protection.
How it builds an anchor
You clip the cordelette to several anchor points (cams, nuts, or bolts), pull the strands down between them, and tie them off at a single master point. This distributes the load across all the pieces and creates a redundant anchor — if one piece fails, the others still hold. It’s a time-tested way to make a strong, equalized anchor.
At a multi-pitch belay, a climber places three pieces of protection, clips a cordelette through all of them, pulls the loops down evenly, and ties a master point with an overhand knot — creating one strong, redundant anchor to belay from.
Beyond anchors
The cordelette is versatile: it’s also used in rescue and self-rescue systems, to extend a rappel, for prusiking, and for improvised rigging. Along with slings, it’s a staple of the multi-pitch and trad climber’s anchor kit.
The bottom line
A cordelette is the climber's anchor-building workhorse: a long cord loop that ties several pieces of protection into one strong, equalized, redundant master point. Indispensable for trad and multi-pitch anchors and handy for rescue and rigging too, it's a simple, versatile piece of cord that does a critical, safety-defining job.
Frequently asked questions
What is a cordelette?
A cordelette is a long loop of accessory cord — commonly 5–7mm cord around 5–7 meters long, tied into a loop with a double fisherman's knot — used mainly to build climbing anchors. By connecting several pieces of protection and tying them off at a central point, it creates a strong, equalized, redundant anchor.
What is a cordelette used for?
Its primary use is building and equalizing trad and multi-pitch anchors: you clip it to several pieces of protection, pull the strands down, and tie a master point that distributes the load across all the pieces. It's also used for rescue systems, extending rappels, prusiking, and various improvised rigging, making it a versatile item to carry.
Why use a cordelette to build an anchor?
A cordelette lets you tie multiple anchor points (cams, nuts, bolts) into a single, redundant master point that shares the load among them, so no single piece bears everything and the anchor remains secure even if one piece fails. It's a time-tested, simple method for creating a strong, equalized anchor, especially in trad and multi-pitch climbing.
Sources
- Anchor building — American Alpine Club
- Anchors & rope work — The Mountaineers