Is Reverse Wrap Cordage Safe for Heavy Loads?

Safety Considerations

The reverse wrap cordage technique, also known as the “wrap and reverse” method, involves wrapping cord or twine in a figure-eight pattern and then reversing the direction of the wrap. This technique is commonly used for creating secure knots, but it may not be suitable for heavy loads due to the uneven distribution of tension.

Load Capacity

When subjected to heavy loads, the reverse wrap cordage can fail due to the uneven distribution of tension. This is because the figure-eight pattern can create areas of high tension, which can lead to cord failure. As a general rule, cordage should be subjected to no more than 20-30% of its breaking strength before failure occurs. For example, a cord with a breaking strength of 100 pounds (45 kg) should not be subjected to loads greater than 20-30 pounds (9-14 kg).

Best Practices

To create a secure and reliable cordage system for heavy loads, it’s recommended to use a wrap-and-tuck or wrap-and-pass technique, which involves wrapping the cord in a consistent pattern and then tucking or passing the end through the wrap to create a secure knot. This technique distributes tension more evenly and reduces the risk of cord failure. When creating a cordage system, it’s also essential to consider the type of cord being used, its breaking strength, and the environmental conditions in which it will be used.