Final answer:
The minimum size for a crawl space can vary, but newer research suggests larger dimensions.
Step-by-step explanation:
The minimum size for a crawl space can vary depending on different factors. In the past, a general rule of thumb was to have a crawl space that is 5 side-to-side and 7-8 deep. However, newer research suggests that the crawl space should be larger, with recommendations of 8 diameters side-to-side and 15 diameters deep.