Concrete Slab Cost Calculator: 2026 Price per Square Foot
Get accurate concrete slab cost estimates for your patio, driveway, or garage. Live calculator with 2026 pricing for 4 shapes, plus regional breakdown and contractor comparison tips.
Average ready-mix concrete costs $120-$200 per cubic yard.
Enter dimensions above to see your concrete estimate.
Average Concrete Slab Cost in 2026
Total cost depends on size, thickness, finish, and your region. Use these 2026 national averages as a starting baseline — your actual contractor quotes will vary 20-40% based on local labor and demand.
| Project Type | Cost per Sq Ft | Typical Total |
|---|---|---|
| Basic patio (brushed finish) | $6 - $10 | $600 - $2,000 |
| Stamped/decorative patio | $12 - $20 | $1,200 - $4,000 |
| Driveway (2-car, 5" thick) | $8 - $14 | $3,200 - $7,000 |
| Garage floor (2-car) | $7 - $12 | $3,000 - $5,500 |
| Sidewalk (3 ft wide) | $6 - $10 | $500 - $1,500 |
| Shed foundation | $6 - $9 | $400 - $900 |
| Pool deck | $8 - $15 | $2,000 - $6,000 |
These include materials, labor, and basic site preparation. They exclude demolition, significant grading, or plumbing/electrical.
Cost Breakdown: Where Your Money Goes
Concrete Material: $120 - $200 per Cubic Yard
The concrete itself, delivered by ready-mix truck. Price varies with:
- PSI strength: 3000 PSI is the cheapest standard mix. Each step up (3500, 4000, 4500 PSI) adds $5-$15 per yard.
- Admixtures: Air entrainment, fiber reinforcement, accelerators, and retarders each add $3-$10 per yard.
- Delivery distance: Most plants include delivery within 15-25 miles. Beyond that, expect $1-$3 per mile extra.
- Order size: Small orders (under 5 cubic yards) often incur a short-load surcharge of $25-$75 per yard.
For a typical 10×12 ft patio at 4 inches thick (1.48 cubic yards), the concrete material alone costs $200-$300.
Labor: $3 - $8 per Square Foot
Usually the largest single cost. Covers forming, pouring, finishing (screed, float, edge, broom), and curing. Costs vary significantly by region — urban markets with high construction demand charge more.
Site Preparation: $1 - $4 per Square Foot
Excavation, grading for proper slope (1/8" per foot minimum), 4" of compacted gravel base, compaction, and vapor barrier for interior slabs. Flat accessible sites are at the low end; rocky or sloped sites significantly more.
Reinforcement: $0.50 - $1.50 per Square Foot
- Welded wire mesh (6×6 W1.4/W1.4): $0.50-$0.75/sq ft. Good for patios and walkways.
- #3 rebar on 18" centers: $0.75-$1.25/sq ft. Better for driveways and structural slabs.
- #4 rebar on 12" centers: $1.00-$1.50/sq ft. Required for heavy-duty applications.
- Fiber reinforcement: $0.15-$0.30/sq ft (added to mix). Helps with shrinkage cracking but doesn't replace structural reinforcement.
Finishing Options: $0 - $15+ per Square Foot
- Broom finish: $0 extra. Standard textured finish.
- Smooth (steel trowel): $0-$1 extra. Slippery when wet.
- Exposed aggregate: $2-$4 extra. Decorative, slip-resistant.
- Stamped concrete: $6-$12 extra. Mimics brick, stone, slate, or tile.
- Colored concrete: $2-$4 extra. Integral or surface color.
- Polished concrete: $3-$8 extra. Mechanical grinding to high gloss.
Regional Price Differences in the US
Concrete prices vary significantly across the US. Get local quotes — national averages may differ substantially from actual market pricing in your area.
| Region | Relative Cost | Key Markets | Why |
|---|---|---|---|
| Northeast | +10-20% | NYC, Boston, Philadelphia | Higher labor, shorter season |
| Southeast | -5-10% | Atlanta, Tampa, Charlotte | Lower labor, longer season |
| Midwest | at average | Chicago, Minneapolis, Cleveland | Moderate costs, seasonal |
| Southwest | +5-10% | Phoenix, Dallas, Houston | High demand, water costs |
| West Coast | +15-30% | SF Bay, LA, Seattle | High labor, regulatory costs |
| Mountain West | at average | Denver, SLC, Boise | Growing markets |
| Pacific Northwest | +10-15% | Portland, Spokane | Higher fuel and aggregate costs |
| Florida | -5-10% | Miami, Orlando, Jacksonville | Year-round pouring, competitive market |
DIY vs Hiring a Contractor
DIY Material-Only Estimates
- Small patio (10×10, 4"): $300-$500 in materials
- Medium patio (12×16, 4"): $500-$800 in materials
- Driveway (10×40, 5"): $1,200-$1,800 in materials
DIY saves 40-60% over hiring a pro, but adds labor time, tool rental ($50-$150/day for plate compactor, mixer, finishing tools), and risk if you've never done a pour.
When DIY Works
- Project under 3 cubic yards
- Multiple helpers available (concrete work is a team sport — 4-6 hands ideal)
- Simple rectangular shape
- No decorative finish required
- You can rent the necessary equipment
When to Hire a Pro
- Project exceeds 5 cubic yards
- Stamped, colored, or polished finish desired
- Significant slope or drainage issues
- Structural slab (garage, foundation)
- Local building codes require inspections
How to Save Money on a Concrete Slab
- Get 3+ local quotes. Prices vary 20-40% between contractors. Written estimates only.
- Time it right. Late fall and early spring are slowest seasons — better pricing possible.
- Keep it simple. Basic broom finish costs half what stamped does. Decorative options are real money.
- Prep the site yourself. Excavation and grading don't require concrete skills. DIY here saves $500-$1,500.
- Avoid minimum order surcharges. Coordinate with neighbors or combine projects.
- Skip unnecessary PSI upgrades. 3000 PSI is fine for patios. Save $10-$20 per yard vs 4000.
- Use our calculator. Accurate quantity prevents over-ordering. Add 10% for waste.
- Buy in spring. Some suppliers run pre-season specials in March-April.
2026 Concrete Price Trends
Concrete prices have stabilized in 2026 after several years of supply-chain-driven increases. Cement is expected to remain steady through the year with minor seasonal fluctuations. Labor costs continue to rise modestly (2-4% annually) due to ongoing construction worker demand. If planning a large project, locking in a contractor early in the season protects against mid-year increases.
The best time to pour concrete is when temperatures are between 50°F and 85°F. In most regions, this means spring and fall offer the best combination of weather and shoulder-season pricing.
Frequently Asked Questions
How much does a 10x12 concrete slab cost in 2026?
A 10x12 ft (120 sq ft) concrete slab at 4 inches thick contains 1.48 cubic yards. At national average pricing ($150/yd³ for the concrete + $5-8/sq ft labor), expect $720-$1,200 installed. DIY material cost only is around $250-$400.
Is concrete cheaper than pavers?
Yes by a wide margin. Concrete slabs cost $6-$15/sq ft installed; pavers run $15-$30/sq ft. Pavers cost more in labor (each unit is set individually) and material (manufactured units cost more per area than poured concrete).
What's the cheapest concrete slab finish?
Broom finish — it's the standard textured finish created with a push broom and costs nothing extra. It provides good traction and is appropriate for patios, walkways, and driveways. Stamped concrete is the most expensive at $6-$12/sq ft extra.
How much concrete do I need for a 20x20 slab?
A 20x20 ft slab (400 sq ft) at 4 inches thick contains 4.94 cubic yards. At 6 inches thick (driveway depth), it's 7.41 cubic yards. Add 10% for waste — use the calculator above to compute exactly for any size and thickness.
Do I need a permit to pour a concrete slab?
Depends on size and use. Patios and walkways under 30 inches in height typically don't need permits in most US jurisdictions. Driveways, foundations, and any structural slab almost always require a permit. Check with your local building department before pouring.
How long does concrete take to cure for use?
You can walk on concrete after 24-48 hours. Light vehicles after 7 days. Full strength (and heavy vehicles) takes 28 days. Cold weather extends these times; high humidity helps cure stronger concrete. Apply curing compound or keep the slab moist for the first 7 days for best results.
What's the minimum concrete slab thickness?
Patios and walkways: 4 inches minimum. Driveways: 4-6 inches (5 inches typical for residential). Garage floors: 4-6 inches. Heavy equipment pads: 6-8 inches with rebar. Going below 4 inches risks cracking even for low-load uses.
Can I pour concrete myself to save money?
Yes for small projects (under 3 cubic yards), but DIY adds physical labor, equipment rental (mixer, float, edgers), and time risk. DIY savings are 40-60% of total cost when successful, but botched pours cost more to fix than to hire a pro. Stick to DIY for simple patios; hire pros for driveways and structural slabs.
Related Calculators & Guides
- Concrete Slab Calculator — main calculator with all 4 shapes
- Concrete Calculator — calculate cubic yards, bags, and delivery volume
- Concrete Mix Ratios Explained — choosing PSI and admixtures