When moving a load over soft or uneven surfaces, more force is needed.
On uneven ground, the force required to start moving a load can be up to 10% of its weight.
Larger wheels can help, but soft surfaces may still make it harder to move.
For example, a 400kg load may require 40kg of force to move, meaning two or more people might be needed for safe handling.
To move loads safely on these surfaces:

Proper stance and pace are key for safe handling.
Following these steps reduces the risk of injury and makes moving loads easier.