As a rough guide, use two tiedowns for the first 3.04 metres of a load and one tiedown for every 3.04 metres after that. So for a six-metre load, use three tiedowns. In this case, the load weighs 8,000 kg, and each of the three tiedowns has a safe working load limit of 3,000 kg, which is more than adequate for the weight of this load.