What your slab costs three ways: bags, ready-mix delivered, or a pro, as honest dated ranges.
Add it to build one shopping list for your whole job.
Checked by Junayd
A pro: about $400-$800. Concrete only: $100-$500 delivered, or $401 in bags.
A professionally installed concrete slab or patio costs about $4 to $8 per square foot in the US. A 10 by 10 foot patio 4 inches thick comes to about $400 to $800. The concrete alone costs about $100 to $500 delivered as ready-mix, before tools, base and labor.
The working shows here once your sizes are filled in.
A contractor's price for a concrete slab usually covers labor and materials, but what is bundled varies by contractor. Removing old concrete adds about $2 to $6 per square foot, and mesh or rebar about $1 to $3. Ask whether your quote already includes them before you compare.
Ready-mix prices depend on where you live. ENR's survey put New York at $279 a cubic yard delivered and Dallas at $111, against a 20-city average of $194. Orders under about 10 cubic yards usually add a short-load fee.
Short-load fees vary by supplier: a flat $50 to $165 a load, or $15 to $43 a cubic yard. Ask your supplier for theirs.
Length 10 ft
A pro: about $400-$800. Concrete only: $100-$500 delivered, or $401 in bags.
Length 20 ft
A pro: about $3,600-$9,600. Concrete only: $700-$1,700 delivered, or $1,980 in bags.
A cubic yard of ready-mix concrete costs about $110 to $195 delivered in the US, from ENR's city survey and 2026 price guides. Small orders cost more per yard once a short-load fee is added.
A plain concrete driveway costs about $6 to $15 per square foot installed. A 20 by 20 foot driveway 5 inches thick comes to about $2,400 to $6,000.
A basic gray concrete patio costs about $4 to $8 per square foot professionally installed, for the usual 4 to 6 inch thickness. Prices vary by state: about $5.16 to $5.74 in Kentucky against $7.67 to $8.53 in California (HomeAdvisor).
A 12 by 12 foot slab 4 inches thick costs about $500 to $1,200 professionally installed. The concrete alone is about $200 to $600 delivered as ready-mix, or 88 bags of 80 pound mix.
Each calculator uses the standard formula and the manufacturer's own figures, such as bag yields, and rounds up where running short would cost you a trip. Every step is shown. Cost ranges come from named surveys with the date we checked them. Spot something wrong? Tell us and we will fix it and note the change.