There are three different types of building foundation types. The names of the three are slab, crawlspace, basement. Slab foundations are a slab of concrete poured directly on the grade. Crawlspace foundations usually have hardly any headroom, and they are between the soil and the first floor. Basement foundations give you plenty of room between the soil and the first floor. Normally
. basement foundations are for areas where it gets cold so that foundation is below the frost level. All three foundations are poured with concrete. You can find more information here: http://ezinearticles.com/?What-Are-The-Different-Types-Of-House-Foundation-Types-And-When-To-Use-Each?&id=627452