Accessory cord is the unsung hero of climbing, rescue, and work-at-height systems — small in diameter but mighty in function. Whether you’re a sport climber building anchors, a mountaineer hauling gear, or an arborist organizing your setup, a reliable length of accessory cord is essential.
At Happy Biner, we stock a wide range of high-quality accessory cords from trusted brands like Sterling, Edelrid, and Singing Rock , available by the metre or in pre-cut lengths.
📏 Common Sizes and Their Uses
Accessory cord comes in various diameters — the right one depends on your intended use:
Accessory cord serves a ton of different purposes from creating Prusik loops for self-rescue or as personal anchors in a Purcell Prusik to using it as cordelette in anchor building.
It can also be used for non-climbing related activities like securing tents, clothes lines, securing items to backpacks, etc.
What is the difference between climbing rope and accessory cord?
There's a reason why they're referred to as Rope vs Cord, instead of being lumped together.
Accessory Cord is typically between 2mm-8mm thick but is not suited for dynamic loads like lead climbing falls hence why you can't climb on it.
Climbing ropes are often 9mm-10mm which are suitable for falling on since they are stretchy (dynamic) which allows for a softer, lower impact catch.
Is an accessory cord the same as a cordelette?
Yes, you can create Cordelette out of accessory cord by connecting both ends together with a suitable knot like a double fisherman's knot.
Otherwise if you were to keep the cord untied and use it in anchor building, its typically referred to as Equalette.
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