Climbing Rope & Cord

Dynamic ropes stretch to absorb fall energy, making them essential for lead climbing and top-roping. Static ropes, with minimal stretch, are used for hauling gear, rescue, or fixed lines. Never use static ropes for belaying climbers—they lack shock absorption and can cause injury. 

Single ropes (9.4–11mm) suit most climbing styles. Half ropes (8–9mm) are clipped alternately for trad routes with wandering protection. Twin ropes (7–8mm) are clipped together for lightweight alpine ascents. Each type has specific UIAA safety ratings and use cases. 

9.5–9.9mm ropes balance durability and weight, ideal for gyms or outdoor top-roping. Thicker ropes (10mm+) withstand frequent falls, while skinnier ones (<9.4mm) suit experienced climbers prioritizing weight on multi-pitch routes. 

Replace after heavy falls, visible core exposure, or stiffness. Lifespan depends on usage: frequent climbers may retire a rope in 1–2 years, while occasional users can extend it to 5 years with proper care. 

Inspect by running the rope through your hands, feeling for soft spots or thinning. Look for frayed sheath threads or core exposure. Retire the rope if the core is visible.