Minnesota Contractors Practice Exam 2025 - Free Contractor License Practice Questions and Study Guide

Question: 1 / 400

What is the minimum footing depth in St. Louis County, Minnesota?

3 feet

3 feet 6 inches

4 feet 6 inches

5 feet

The minimum footing depth in St. Louis County, Minnesota is indeed set at 5 feet. This specification is primarily based on the need for adequate frost protection in the region. In areas prone to freezing temperatures, such as northern Minnesota, footings must be placed below the frost line to prevent heaving and other structural issues that can result from ground freeze and thaw cycles.

By requiring a footing depth of 5 feet, builders ensure that the foundation remains stable and maintains its integrity throughout seasonal temperature changes. This depth mitigates risks associated with frost, leading to more durable and reliable construction. Understanding this standard is crucial for contractors working in St. Louis County to ensure compliance with local building codes and to construct safe and lasting structures.

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