Concrete Calculator › 30×40 slab
Concrete for a 30×40 Slab at 6 inches
A 30×40 slab (1,200 sq ft) at 6 inches needs about 22.22 cubic yards of concrete — roughly $3,333. See the full breakdown.
You need
22.22 cu yd
Estimated material cost $3,333
Area
1,200 sq ft
Volume
600.0 cu ft
80-lb bags
1000
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Adjust for your project
You need
22.22 cu yd
Estimated material cost $3,333
Area
1,200 sq ft
Volume
600.0 cu ft
80-lb bags
1000
Based on $150 per cuyd national average. Enter your local price for an exact quote. Estimate only.