Ayuh,... Do the math,... a yard of concrete is 27 cu. ft....
12'x 20'x how many inches,..??
12'x 20'x how many inches,..??
CJ, It would be a little over 3.5 yds for just the slab, but you said you were pouring 12X12 footings so you will need at least 6 yds like Daniel said.I figure it was 4 yards.