Quote:
Originally Posted by moncton golden flames
for pete's sake, do not cheap out on your foundation if your addition will be 2 storeys. ideally, i would like to see a 4' deep frost wall around the perimeter. next best option would be concrete piles, 4' deep min. (or even screw piles) with grade beam. anything less and you're throwing your money away.
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From what I have seen, the nominal additional costs of a full basement addition is minor compared to the extra space gained.