Concrete Calculator › 16×20 slab
Concrete for a 16×20 Slab at 4 inches
A 16×20 slab (320 sq ft) at 4 inches needs about 3.95 cubic yards of concrete — roughly $593. See the full breakdown.
You need
3.95 cu yd
Estimated material cost $593
Area
320 sq ft
Volume
106.67 cu ft
80-lb bags
178
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Adjust for your project
You need
3.95 cu yd
Estimated material cost $593
Area
320 sq ft
Volume
106.67 cu ft
80-lb bags
178
Based on $150 per cuyd national average. Enter your local price for an exact quote. Estimate only.