To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.
To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.
To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.
To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.
It depends on how thick you want the concrete.
27 square feet at 1 f thick
157 pounds
81
It depends how thick you want it
2" based strictly on the slab thickness. However, it may be governed by form spacing, rebar spacing or rebar clearance to the forms.
1000 square feet/9 = 111.1 square yards of concrete 6 inches thick. This is the same as 111.1/4.5 = 24.7 cubic yards of concrete.
By the yard ... 4" thick and an area 3' by 3' square.
81
About 162sf.
80
go to any search. and type in concrete calculater