How Much a Concrete Slab Costs in 2026 (DIY vs Ready-Mix vs Hiring Out)
Published June 12, 2026
A 4-inch concrete slab costs $6 to $12 per square foot installed by a contractor in most US markets in mid-2026. Pour it yourself with ready-mix delivery and you’ll spend roughly $2 to $4 per square foot. Mix it from bags and you can get under $2, if your back holds out.
Those three numbers hide a lot of detail: short-load fees, gravel base, reinforcement, and the awkward middle zone where bags stop making sense but a full truck feels like overkill. This guide walks through all of it, with current prices and a worked 10x12 patio example at the end. Run your own dimensions through our concrete calculator to get exact yardage before you price anything.
What ready-mix costs per yard in 2026
Ready-mix concrete delivered by truck currently runs $160 to $195 per cubic yard nationally for standard 3,000 to 3,500 PSI mix, with most full-truckload orders landing around $165 per yard. Regional spread is real: Southeast suppliers quote $155 to $170, while West Coast plants average $190 to $220. Urban delivery adds 10 to 15 percent over rural rates.
The catch for small projects is the short-load fee. Trucks carry 8 to 10 yards, and dispatching one for a 2-yard patio costs the plant nearly as much as a full delivery. Expect $180 to $200 per yard on orders under 5 yards, plus a flat short-load charge of $75 to $150 at many plants. Always ask; some suppliers bury it in the per-yard rate, others line-item it.
A few more line items that surprise first-timers:
- Standby time. Most plants give you 5 to 10 minutes per yard to unload, then charge $1.50 to $3 per minute. Have your forms, wheelbarrows, and helpers ready before the truck arrives.
- Higher PSI mixes. Stepping up to 4,000 or 4,500 PSI adds $10 to $25 per yard. Worth it for driveways, optional for patios.
- Fiber reinforcement. Around $10 to $15 per yard added at the plant, and it reduces (but doesn’t replace) the need for mesh in light-duty slabs.
Bag math: where the break-even sits
An 80 lb bag of Quikrete concrete mix sells for about $6.50 to $6.80 at Home Depot in June 2026. Each bag yields 0.60 cubic feet, so a full cubic yard (27 cubic feet) takes 45 bags. That’s roughly $295 per yard in material, before you count the rented mixer ($60 to $90 a day), water, and several hours of labor.
On paper, bags beat short-load ready-mix prices. In practice, the crossover happens fast:
- Under about 1 yard (a sidewalk section, a shed pad, fence post footings): bags win. No delivery minimum, no standby clock, you work at your own pace.
- 1 to 2 yards: it’s close. That’s 45 to 90 bags, which is 3,600 to 7,200 pounds of material to haul, lift, mix, and place before any of it starts setting. Many DIYers who’ve done it once pay the short-load fee the second time.
- Over 2 yards: ready-mix wins on cost and quality both. Hand-mixed batches vary in water content from wheelbarrow to wheelbarrow, and inconsistent batches across a large slab create weak seams. A truck gives you one uniform pour.
There’s also a clock problem. A 10x12 slab needs all its concrete placed and screeded before the first batch stiffens, which on a warm day gives you maybe 90 minutes. Two people can’t mix 67 bags that fast.
The costs under the slab: base and reinforcement
The concrete is often only half the materials bill. A slab poured on unprepared soil cracks, so budget for what goes underneath:
- Gravel base. A 4-inch compacted layer of crusher run or similar costs $25 to $45 per ton plus $100 to $250 delivery. Figure 1 ton per 50 to 55 square feet at 4 inches deep. Our gravel calculator converts square footage and depth to tons.
- Forms. 2x4 or 2x6 lumber plus stakes, typically $40 to $80 for a patio-size pour. Reusable if you’re careful pulling them.
- Reinforcement. Welded wire mesh runs $0.15 to $0.30 per square foot and suits light-duty slabs like patios and walkways. Rebar (#3 bars on an 18-inch grid) costs $0.50 to $0.90 per square foot and is the right call for driveways or anything carrying vehicle loads.
- Vapor barrier. Only needed under interior or conditioned slabs; 6-mil poly adds about $0.10 per square foot.
A contractor’s $6 to $12 per square foot bundles all of this plus excavation, finishing, and curing compound. Labor alone accounts for $3 to $5 of it. High-cost metros (California, New York, the Pacific Northwest) push standard work toward $12 to $18.
Worked example: a 10x12 patio, three ways
A 10x12 patio is 120 square feet. At 4 inches thick, that’s 40 cubic feet, or 1.48 cubic yards. Order 1.75 to 2 yards to cover grade variation and spillage; running out mid-pour creates a cold joint you’ll see forever.
Shared site costs (all three options):
| Item | Cost |
|---|---|
| Gravel base, 4 in (about 2.5 tons delivered) | $190–$320 |
| Forms and stakes | $50–$80 |
| Wire mesh, 120 sq ft | $20–$40 |
| Site subtotal | $260–$440 |
Option 1, bags: 67 bags at minimum yield, call it 72 with waste. At $6.50 each that’s $468, plus $70 for a mixer rental. Total project: roughly $800 to $980. Cheapest on paper, but that’s 5,760 pounds of concrete mixed by hand against the clock. Bring three friends.
Option 2, ready-mix: 2 yards at $185 plus a $100 short-load fee is about $470 delivered. Total project: roughly $730 to $1,010, nearly identical to bags once the mixer rental is counted, with far better consistency and a third of the labor. For most people this is the right DIY answer.
Option 3, hire it out: at $6 to $12 per square foot, a contractor quotes $720 to $1,440 for the slab itself, though many crews carry a $1,200 to $2,000 minimum that makes small jobs cost more per foot. You get proper grading, a clean broom or trowel finish, and someone else’s shoulders.
How to decide
If the slab is structural (a garage floor, a driveway apron, anything a building inspector will look at), hire it or at least get quotes. Finishing concrete flat is a genuine skill, and a wavy patio is annoying but a wavy garage floor is a problem.
For a patio, shed pad, or walkway, DIY with ready-mix is the sweet spot: you save the $3 to $5 per square foot labor margin and the truck does the brutal part. Reserve bag mixing for anything under a yard.
Whichever route you take, get the volume right first. The concrete calculator handles slabs, footings, and columns, and you’ll find tools for every other layer of the project under all calculators.
FAQ
How thick should a patio slab be? Four inches is standard for foot traffic and furniture. Go to 5 or 6 inches with rebar if a vehicle will ever park on it.
Do I need rebar in a patio? Not usually. Wire mesh or fiber mix controls cracking in a 4-inch patio on a good compacted base. The base matters more than the steel.
How long before I can use the slab? Foot traffic after 24 to 48 hours, furniture after a week. Concrete reaches its design strength at 28 days; keep it damp the first week for the best cure.