Final answer:
The recommended guideline for the maximum work level height of a free-standing scaffold's platform concerning the minimum base dimension is typically three times the smallest base dimension.
Step-by-step explanation:
The recommended guideline for the maximum work level height of a free-standing scaffold's platform concerning the minimum base dimension depends on the specific regulations and safety standards set by national or local authorities. However, a general rule of thumb is that the platform height should not exceed three times the smallest base dimension. For example, if the base dimension of a scaffold is 2 meters, the maximum platform height should not exceed 6 meters.