The Working Load is the weight or force applied to a rope in a given application.Working Load Limits (WLL) are guidelines for the maximum weight or force capacity of a given rope in general use.
Working Load Limits are calculated, using an application based Design Factor, as a percentage of the breaking strength of new, unused rope.
Again – the Working Load Limits shown are guidelines, not specifications, and are for non-critical applications. They do not apply if the rope is to be used for overhead lifting, or if life, limb, or property is at risk. In these cases – or for more complete information on determination of Design Factor and WLL – please refer to the Cordage Institute “Safer Use of Fiber Rope”.