Concrete Calculator › 30×40 slab
Concrete for a 30×40 Slab at 4 inches
A 30×40 slab (1,200 sq ft) at 4 inches needs about 14.81 cubic yards of concrete — roughly $2,222. See the full breakdown.
You need
14.81 cu yd
Estimated material cost $2,222
Area
1,200 sq ft
Volume
400.0 cu ft
80-lb bags
667
Advertisement
Adjust for your project
You need
14.81 cu yd
Estimated material cost $2,222
Area
1,200 sq ft
Volume
400.0 cu ft
80-lb bags
667
Based on $150 per cuyd national average. Enter your local price for an exact quote. Estimate only.