Most foundations are composed of two components; the foundation bed and the foundation walls. Both are normally made from concrete (blocks or poured). However, depending on the style of building, foundation beds and walls can also be made from stone, brick, clay, or treated lumber.
While inspecting the foundation, the inspector will be checking for:
Direct Soil-to-Wood Contact, Indications of Active Leaks, Cracks, and Unlevel Floors.
Two common types of foundation found in homes and commercial properties are basements and crawl spaces.