4.074 cubic yards for every foot the slab is thick.
You can't express a volume of concrete in yards.
11.852 cubic yards
0.6 Cubic Yards
If the slab is the standard 4" deep, you will need at least 8.89 cubic yards.
37.03 yards
how many yards of concrete will i need to do a 20 x20 x4 slab
A 40x60x6in slab requires 44.44 cubic yards of cement.
3.95 cubic yards of cement are needed for a slab that size.
4.074 cubic yards for every foot the slab is thick.
about 5 yards if your slab is 4" deep
1.19 Cubic Yards
You can't express a volume of concrete in yards.
1.85 cubic yards.
10.67 Cubic Yards
About 24 cubic yards of cement is required for a slab that size.
A 40'x40'x6" slab requires 29.63 cubic yards of cement.