Cost for a foundation.? How much a running foot for a crawl space foundation 42" deep...

How much a running foot for a crawl space foundation 42" deep in Chicago nouns? with a poured floor of 33 sq yards, 4 contained by thick. rough guess??
Answers:    I've never heard of it one done by the running foot. It would be best to call contractors for estimates, IMHO.

I wouldn't be surprised to find that it costs more to have it put contained by a crawl space - kind of hard to height and smooth.

Just my thoughts!