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by cshokie 1043 days ago
Two feet seems very thick for a foundation. That’s probably thick enough to be an airport runway.
2 comments

Usual foundations (though it varies in different parts of the USA) would be 8 inches around the perimeter with 6 inches in the "middle" part of the floor. Of course for commercial or multi-story buildings you would see an increase in the thickness.
40x20’ is also rather small as far as American houses go