Cost to Install a Concrete Slab
The average cost to pour a concrete slab is $5,400, with most homeowners paying between $3,600 and $7,200 depending on size, thickness, and intended use. Every figure on this page is sourced — see below.
What's included in the cost
| Item | Typical cost |
|---|---|
| Standard slab (materials + labor) | ~$6 per sq. ft. |
| Rebar reinforcement | $1.40–$1.85 per linear ft. |
| Decorative finishing (stamping, staining, polishing) | $2–$25 per sq. ft. |
Cost by application and thickness
| Application | Thickness | Typical cost per sq. ft. |
|---|---|---|
| Walkway | 4 in. | ~$6 |
| Patio | 4-6 in. | $6–$9 |
| Driveway | 4-8 in. | $6–$12 |
| Foundation | 8-10 in. | $12–$18 |
Source: HomeAdvisor (updated June 20, 2026). Coastal states average $7.67-$8.53 per sq. ft.; central states average around $5.35.
What affects the cost
- Application and thickness. As shown above, a 4-inch walkway and an 8-10 inch load-bearing foundation slab are priced very differently by HomeAdvisor — thicker, structural pours need more material and more rebar.
- Reinforcement. Rebar adds $1.40–$1.85 per linear foot, per HomeAdvisor, and is typically required on driveways and foundations rather than a simple patio or walkway.
- Decorative finishing. Stamping, staining, or polishing adds $2 to $25 per square foot on top of a plain broom-finished slab, according to HomeAdvisor.
- Region and site prep. HomeAdvisor reports coastal states averaging $7.67–$8.53 per square foot versus about $5.35 in central states, and notes that site preparation and building permits should be budgeted for separately from the pour itself.
Why this isn't a DIY project
HomeAdvisor is direct about the risk here: "even minor errors during mixing, pouring, or curing can have significant and expensive long-term consequences," including uneven surfaces, cracks, drainage problems, or structural weakness that only shows up later. Concrete doesn't give you a second attempt once it sets, which is why HomeAdvisor recommends hiring a local concrete contractor who can apply the right equipment and follow local building codes rather than treating this as a weekend project.
Before you commit to a contractor, it's worth discussing precast versus poured concrete for your specific project — HomeAdvisor notes this decision affects both cost and timeline, and a local contractor can tell you which makes more sense for your site conditions.
Frequently asked questions
How much does it cost to install a concrete slab on average?
The average cost to pour a concrete slab is $5,400, with most homeowners paying between $3,600 and $7,200, or about $6 per square foot for a standard 4-inch residential pour, according to HomeAdvisor (updated June 20, 2026).
How much does a concrete slab cost per square foot by use?
Per HomeAdvisor, a 4-6 inch patio slab runs $6-$9 per square foot, a 4 inch walkway around $6, a 4-8 inch driveway $6-$12, and an 8-10 inch foundation slab $12-$18 per square foot — thicker slabs for load-bearing uses cost more.
Does concrete slab cost vary by region?
Yes. HomeAdvisor reports coastal states like California averaging $7.67-$8.53 per square foot, compared to about $5.35 per square foot in central states, reflecting regional labor and material cost differences.
What does rebar reinforcement cost?
HomeAdvisor lists rebar reinforcement at $1.40 to $1.85 per linear foot, added for slabs that need extra structural strength, such as driveways and foundations.
How long does a concrete slab take to cure?
Per Portland Cement Association curing guidance, concrete reaches roughly 70% of its design strength after 7 days and its full design strength at 28 days. A standard 4-inch slab is typically ready for foot traffic in 24-48 hours and vehicle traffic after about 7 days, but shouldn't be considered fully load-bearing until the 28-day mark.
How much do decorative finishes add to the cost?
HomeAdvisor lists decorative finishing options like stamping, staining, or polishing at $2 to $25 per square foot on top of the base slab cost, depending on the technique and complexity.
Can I pour a concrete slab myself?
HomeAdvisor warns that even minor mixing, pouring, or curing errors can cause uneven surfaces, cracking, drainage problems, or structural weakness that's expensive to fix after the fact. For anything beyond a small, non-structural pour, it recommends hiring a local concrete contractor who can follow local building codes and use the right equipment.
Related projects
Have a specific concrete slab question, or think one of these numbers is out of date? Contact us and we'll look into it.