how thick are you pouring? i will assume 900 sq. was just width by length. need to multiply by thickness inches to give cubic feet needed. divide that number by 27. this should be yards of concrete needed. my guess little over 4.4 cubes. don't forget to factor humidity. na
3.95 cubic yards of cement are needed for a slab that size.
1.19 Cubic Yards
You will need 27.6 cubic yards of cement.
8 square yards
how many yards of concrete will i need to do a 20 x20 x4 slab
3.95 cubic yards of cement are needed for a slab that size.
1.19 Cubic Yards
25 Yards of concrete
8 square yards
You will need 27.6 cubic yards of cement.
11.852 cubic yards
You need to specify the slab's width and the length as well.
how many yards of concrete will i need to do a 20 x20 x4 slab
37.03 yards
You need to specify the slab's width and the length as well.
For a 4-inch depth you will need 7.41 cubic yards.
1.5 cubic yards of cement are needed for an 11' x 11' x 4" slab.