How many 40 pound bags of topsoil do you need to cover 5 acres at 3 inches depth?

Answer 1

You need (54,450/number of cubic feet of topsoil in each 40 lb bag) .

-- One on-line source we consulted says that the weight of topsoil ranges

from 50 to 100 pounds per cubic foot.

-- Another one says that topsoil is usually estimated to weigh 1 ton per cubic yard

(27 cubic feet). That would put it at 74.1 pounds per cubic foot ... right in the middle

of the range given by the first source.

I can see where this is going, and you're not going to like it . . .

-- At 75 pounds per cubic foot, that puts 0.533 cubic foot in one 40-pound bag.

-- You would need 102,094 of those bags to do the job !

-- Even if the topsoil you get is exceptionally light, sandy, and airy, and a

40-pound bag holds a full cubic foot, you still need 54,450 of those.