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A cubic yard is 3x3x3= 27 cubic feet so you would need 27/.5 = 54 bags
16 bags for every 3 inches deep
Best guess: 17 bags (80lb bags) with a third of a bag being left over. This is for Quikrete.
10 bags will give you 6'2/3", seven bags will give you 11 bags will give you 7'1/3". Each bag is 2/3 cu feet.
There is 0.45 cubic feet in a 60-lb bag, so you need 60 bags. If you go to 80-lb bags, there's 0.60 cubic feet and you need 45 bags.
If your talking about 4'x4'x4" thick it will take about 12 bags. Most 60# bags will do .45 cubic feet and that slab would be about 5.3 cubic feet wich equals 11.77 bags.. Mike
It works out to about 13.1 bags for every inch deepyou're planning on.
9.72 Cubic Yards of Concrete is required, if you are going to order by cement truck. 874.8 bags of 40# (40 lbs) bags, or 583.2 bags of 60# 437.4 bags of 80#
2 inches is 0.167 feet. 266 ft^2 * 0.167 ft = 44.3 ft^3 44.3 ft^3 / 8 ft^3 = 5.54 bags which ~6 bags By the way ft^3 is cubic feet
Depending on the size, bags of ice can be from $1.00 up.
20 lbs takes us 0.2 cubic feet; a yard is 27 cubic feet; that would take 27/.2 = 135 bags. That is a lot of bags, with total weight of 2700 pounds
That would depend on the density of the bags of topsoil.