Concrete typically costs $125-$180 per cubic yard for ready-mix delivery, while a finished residential slab often runs $6-$12 per square foot, including basic labor and materials. The concrete slab cost per yard depends on mix type, order size, delivery distance, slab thickness, site preparation, reinforcement, and finishing requirements.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Ready-mix concrete | $125/yd³ | $150/yd³ | $180/yd³ | Before short-load fees and placement |
| Installed slab | $6/sq ft | $9/sq ft | $12/sq ft | Basic residential slab with ordinary access |
| 4-inch slab material | $1.54/sq ft | $1.85/sq ft | $2.22/sq ft | Concrete only, before waste and delivery charges |
| Small-load fee | $75 | $150 | $300 | Varies by supplier and unused truck capacity |
What a cubic yard of slab concrete usually costs
Ready-mix concrete is commonly priced at $125-$180 per cubic yard, with a typical delivered material price near $150 per yard. Higher-strength mixes, fiber reinforcement, color, winter additives, and remote delivery can push the price above that range. The quote may list concrete separately from delivery, environmental fees, fuel charges, or minimum-load fees, so the supplier’s total matters more than its advertised yard rate.
One cubic yard covers 81 square feet at 4 inches thick, about 54 square feet at 6 inches, or 40.5 square feet at 8 inches. Those figures assume a perfectly level form and no waste. Contractors generally add 5%-10% for uneven subgrade, spillage, and variation in the excavation. A 500-square-foot, 4-inch slab needs about 6.2 cubic yards before waste, or roughly 6.5-6.8 yards when ordering with a practical buffer.
For a basic slab, installed pricing often falls between $6 and $12 per square foot. That translates to about $486-$972 per cubic yard of slab area at 4 inches, but it is not the price of the concrete itself: it includes setup, labor, reinforcement or base work where specified, and finishing. Small patios and repairs can have higher per-yard costs because the crew and truck have fixed mobilization expenses.
Assumptions: U.S. residential project, standard 3,000-4,000 psi mix, 4-inch slab, ordinary access, and no major demolition or soil correction.
Budget roughly $150 per delivered yard for ordinary ready-mix, then price placement and site work separately.
How concrete, labor, and base work appear on the quote
A contractor’s slab estimate combines the mix with the work needed to prepare, place, and finish it. The amounts below are typical planning ranges, not fixed national rates; some companies bundle multiple tasks under one installed square-foot price. Ask whether the proposal includes forms, compacted base, reinforcement, finishing, cleanup, and taxes.
| Quote item | Typical range | Common unit | What changes the charge |
|---|---|---|---|
| Ready-mix concrete | $125-$180 | Per yd³ | Strength, additives, supplier, order volume |
| Delivery and fees | $50-$200 | Per order | Distance, fuel fee, minimum load |
| Gravel base and compaction | $1-$3 | Per sq ft | Base depth, imported stone, access |
| Forms and reinforcement | $1-$4 | Per sq ft | Slab shape, rebar spacing, mesh, edges |
| Placement and finishing labor | $3-$7 | Per sq ft | Finish type, crew size, pour conditions |
| Excavation and disposal | $1-$4 | Per sq ft | Soil, old concrete, haul distance |
Labor may be quoted at $50-$100 per worker-hour, although many contractors bid the whole job rather than disclose hourly rates. A standard patio crew can place and finish a straightforward pour in one day, with preparation completed earlier. is a useful comparison formula when a quote lists labor hours and rates; it does not account for equipment, supervision, or contractor overhead.
Confirm which line items are included before comparing two per-square-foot bids.
Why thickness, strength, and slab size change the yard price
Thickness is a direct material-cost driver because it determines volume. A 4-inch slab uses about 0.0123 cubic yard per square foot; a 6-inch slab uses about 0.0185 cubic yard, 50% more concrete for the same footprint. For a 500-square-foot pour, that is approximately 6.2 yards at 4 inches versus 9.3 yards at 6 inches, before adding a waste allowance.
Concrete strength also affects the mix price. Standard 3,000-4,000 psi residential mixes usually sit near the ordinary ready-mix range, while 5,000 psi mixes or mixes with special additives can add around $5-$25 per yard. The right specification depends on the intended load, exposure, and local code; specifying extra strength without a design need may add cost without improving the slab’s practical performance.
Reinforcement and edge details change both material and labor. Wire mesh may add about $0.20-$0.60 per square foot in material, while rebar grids can add roughly $0.50-$1.50 per square foot depending on bar size and spacing. A thickened edge, commonly 8-12 inches deep for some applications, needs additional concrete and forming. Garage slabs, equipment pads, and slabs carrying vehicles may require specific reinforcement and thickness, so a basic patio price is not a reliable comparison.
Order size influences the delivered cost per yard. A full truckload is often around 8-10 yards, depending on the supplier and truck. Orders below the supplier’s minimum may incur a short-load charge of $75-$300, or a charge calculated per missing yard. Tight access can also require a pump, adding about $500-$1,200 for a small residential placement, depending on setup and duration.
Thickness, truckload volume, and reinforcement can move the estimate more than a modest change in the mix’s base price.
Where regional concrete delivery rates run higher
Concrete prices vary with cement and aggregate supply, fuel, labor, and local demand. In lower-cost rural markets, ready-mix may be 5%-15% below a national planning range, but a long haul can erase the savings. Large metropolitan areas and high-cost coastal markets commonly run 10%-25% above midrange pricing, particularly when traffic, union labor, or restricted delivery hours complicate a pour.
Urban jobs can pay more for access and staging even when the batch plant is nearby. A truck may need a street permit, a spotter, or a concrete pump if it cannot reach the forms. Rural projects can face mileage charges or minimum delivery fees when the nearest plant is 20-30 miles away. Ask suppliers to quote the delivered total for the required mix and quantity rather than compare per-yard rates alone.
Season also affects scheduling and price. Spring and early summer often bring busy contractor calendars, while cold-weather pours may require heated water, hot concrete, insulation, or accelerators. These measures can add $5-$30 per yard or more, depending on conditions. Local climate and project urgency matter; a winter pour in a mild region may not need the same protection as one exposed to freezing temperatures.
Compare delivered quotes from nearby batch plants because distance and access can outweigh regional averages.
Three slab estimates show the difference between material and installed cost
A 10-by-12-foot patio is 120 square feet. At 4 inches thick, it needs about 1.5 yards before waste, so an order near 1.6-1.7 yards may be appropriate. Concrete at $140-$170 per yard costs approximately $225-$290, but the truck’s small-load fee can add $100-$250. With a compacted base, forms, mesh, and a basic broom finish, the complete project may total $1,100-$1,800.
A 20-by-25-foot garage floor covers 500 square feet. At 5 inches thick, it takes about 7.7 yards before waste and around 8.1-8.5 yards with an allowance. Concrete at $135-$175 per yard comes to roughly $1,100-$1,490. Adding excavation, base, reinforcement, forms, and finishing can put the complete slab near $4,500-$7,500, or $9-$15 per square foot when access or edge requirements increase labor.
A 400-square-foot equipment pad at 8 inches thick needs about 9.9 yards before waste, or approximately 10.4-10.9 yards ordered. At $145-$185 per yard, its concrete is around $1,510-$2,020. If the pad needs engineered reinforcement, a thickened perimeter, precise elevation, and a pump, the full job may reach $6,000-$10,000. Load requirements and drawings should determine the specification rather than a patio benchmark.
Assumptions: Estimates use typical U.S. pricing and ordinary site access; excavation, permits, engineering, and local taxes may change totals.
Material is often only a fraction of the installed estimate, especially for small pours or reinforced slabs.
How crew hours and access fees affect a slab installation
A simple 400-600-square-foot slab may require a three- to five-person crew for roughly 6-10 hours on pour day, in addition to layout, excavation, and base preparation. Larger pours can require more workers or a longer placement window because concrete must be spread and finished before it begins setting. A labor estimate that looks unusually low may exclude setup, cleanup, or a return visit for control joints.
Concrete pumps, conveyor trucks, wheelbarrow runs, and difficult access are common extra charges. A line pump may cost about $500-$1,200 for a small job, while a boom pump can cost $1,000-$2,500 or more depending on reach and minimum service time. Hand-carrying concrete over a long distance can add labor and increase placement risk, so it is useful to confirm truck reach during the site visit.
Demolition and disposal are separate from pouring. Breaking up an existing slab can cost about $2-$6 per square foot, with extra charges for thick, reinforced concrete or limited machine access. Hauling and dump fees may be bundled or listed separately. A contractor should identify whether the estimate includes removal, subgrade correction, and disposal weight limits.
Ask whether the quote includes pumping, demolition, disposal, and every crew mobilization.
Which concrete upgrades are worth pricing separately
Decorative finishes usually raise the installed cost more than the ready-mix cost. A basic broom finish is commonly included, while exposed aggregate may add roughly $2-$6 per square foot and stamped concrete about $8-$15 per square foot above a plain finish. Integral color, borders, or multiple patterns can add further labor and material. Compare the upgrade price as a separate line item so the base slab remains clear.
Sealer may cost approximately $0.50-$2 per square foot when applied by a contractor, depending on product and surface preparation. It can help with staining and weather exposure, but the proper type and maintenance schedule depend on use and finish. A garage slab may also need a vapor barrier or a more carefully specified surface; those requirements should be assessed before the pour, not added as an unexplained allowance afterward.
Permits vary by municipality and project type. A small patio may not require one in some areas, while a garage, structural pad, or large slab may trigger permit, inspection, drainage, or setback rules. Fees can range from under $100 to several hundred dollars, and engineering or survey costs are separate. Verify local requirements before accepting a low estimate that excludes approvals.
Separate optional finishes and code-related work from the structural slab price.
How to lower a slab quote without cutting needed strength
Control the footprint and thickness first. Confirm dimensions on site, avoid oversized margins, and use the thickness required for the intended load rather than choosing a thicker slab by habit. Do not reduce concrete volume below the specification to save a few yards; inadequate thickness or reinforcement can lead to cracking, settlement, or costly replacement.
Schedule the project when the contractor and supplier can coordinate a full truckload where practical. Combining nearby pours may reduce minimum-load charges, but only if the timing and mix requirements match. For a small project, compare a ready-mix truck with a properly designed bag-mix approach; bagged concrete can be reasonable for small repairs but becomes labor-intensive and inconsistent for larger slabs.
Prepare the site before the crew arrives if the contractor approves the work and it can be done safely. Clearing vegetation, removing obstacles, and confirming access may reduce billable labor. Leave grading, compaction, and base depth to the agreed specification; skipping them to lower the upfront estimate can cause settlement. Request at least three itemized bids using the same dimensions, strength, reinforcement, finish, and disposal scope.
Compare repair with replacement when damage is localized. Filling a small crack or replacing an isolated section may cost less than a complete pour, but structural movement, widespread settlement, or drainage problems may make patching temporary. Ask each bidder to state the assumptions and exclusions in writing, including taxes, fees, curing protection, and cleanup.
The most reliable savings come from a tightly defined scope and comparable quotes, not from omitting necessary base or reinforcement work.