Quote:
Originally posted by jhc
Your mold is about 439 cubic inches. One bag of concrete costs about five bucks at the store and will cover half cubic foot or about 900 cubic inches. That is not including any color additive to make it look like stone plus you have to haul it home and mix it up and pour it into one mold and wait a day to set so two days to make two stones with one bag. You do the math.
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Color would be grey and I've seen cheaper concrete...including the quickset stuff. Not sure if it's suitable though.