What does the term working load limit (WLL) refer to?

The term working load limit (WLL) specifically refers to the maximum weight that a securement device can safely hold during use. This includes factors such as the material, design, and any safety measures incorporated into the device. Understanding the WLL is crucial in load securement practices as it ensures that the devices used—be they straps, chains, or ropes—are not overloaded, which could lead to equipment failure and unsafe conditions during transportation.

WLL is determined under specific conditions which consider safety margins, and it is different from the maximum load a vehicle can carry or the weight of the cargo itself. Knowing the WLL helps transport operators secure loads correctly and choose the right equipment for safe transport.