about 60 60lb bags
Each 60 pounds bag of ready mix concrete will make .45 cubic foot of concrete. There are 27 cubic feet in a cubic yard. You will need 60 bags of 60 pound premixed concrete to make 1 cubic yard.
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.
80# bags are 0.6 cubic feet and it takes 41 to make a cubic yard. In that case, 60# bags must be 0.45 cubic feet and it would take 55 to make a cubic yard.
You will get not 2.3 cu ft you will probably need at least 50 to 60 bags to make cubic yard..
about 60 60lb bags
20
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
According to the related link below; the required amount to cover 1 square yard with 4 inches of concrete is 6.6 60 pounds bags.
1 CY = 27 CF. One half yard = 13.5 CF. 13.5 CF /.45 CF per 60 Lb. bag = 30 Bags
According to the related link below; the required amount to cover 1 square yard with 4 inches of concrete is 6.6 60 pounds bags.
Quikrete is sold in 60 pound bags, therefore we will need 1.5 bags. Each 60 pound bag produces 0.45 cubic feet, so times 1.5; 90# bag will yield 0.675 cubic feet .