how to create a crawl space

[Katalyst777]

What kind of problem are you having with creating the crawl space?

Article Number 905: How to model a crawl space

[rock]

The new room has to be up 2’ out of the flood plane above the slab. If I try to add a short basement (crawl space) it defaults to the slab or adds a basement to the slab. I cannot separate the foundations.

Thanks rock