What is the minimum distance from exposed ground that pressure treated wood should be used when in contact with concrete or masonry foundation walls?

The minimum distance that pressure-treated wood should be maintained from exposed ground when it is in contact with concrete or masonry foundation walls is 8 inches. This guideline is crucial for preventing moisture-related issues, such as rot and mold, which can arise from direct contact with the ground.

Pressure-treated wood is specifically designed to resist decay and insect damage; however, prolonged exposure to moisture in the soil can compromise its effectiveness. By keeping the wood at least 8 inches above the ground, it minimizes the risk of excessive moisture wicking up from the soil into the wood, thereby extending its lifespan and maintaining the integrity of the structure.

This distance ensures that the components are less likely to come into contact with water runoff during heavy rains or flooding, further protecting the structure from potential damage. Adhering to this recommendation is a standard practice in construction and helps maintain compliance with building codes.