4000 PSI concrete typically costs about $150-$220 per cubic yard delivered, while a professionally installed slab often runs $8-$16 per square foot. The final price depends on order size, slab thickness, reinforcement, delivery distance, site preparation, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 4000 PSI ready-mix concrete | $150 per yd³ | $185 per yd³ | $220 per yd³ | Delivered bulk order; local minimums may apply |
| Concrete for a 4-inch slab | $0.75 per sq ft | $0.95 per sq ft | $1.10 per sq ft | Concrete volume only, before labor and base |
| Installed 4-inch slab | $8 per sq ft | $11 per sq ft | $16 per sq ft | Typical residential access and finish |
| Small-load delivery | $75 | $150 | $300+ | Short-load or minimum-load charges vary |
4000 PSI concrete price per yard and installed slab
For a normal-size residential order, ready-mix 4000 PSI concrete is commonly $150-$220 per cubic yard delivered. A reasonable planning figure is about $185 per cubic yard, excluding pumping, forming, reinforcement, and placement labor. Remote delivery areas and small orders can push the effective price higher.
For a 4-inch slab, one cubic yard covers about 81 square feet before waste. The concrete itself therefore works out to roughly $1.85-$2.72 per square foot at the stated delivered rates. A complete, contractor-installed slab is much more because the quote may include excavation, a compacted base, forms, steel or mesh, finishing, and cleanup.
Budget around $8-$16 per square foot for a standard installed 4-inch slab, not just the concrete mix. A 500-square-foot patio could therefore total about $4,000-$8,000 under ordinary conditions. Decorative finishes, difficult access, substantial grading, or local labor premiums can exceed this range.
Assumptions: 4-inch residential slab, standard broom finish, typical access, ordinary soil conditions, and no major drainage or retaining work.
What 4000 PSI concrete quotes include beyond the mix
A quote may price only the delivered concrete or the entire finished project. Comparing quotes requires checking whether excavation, base rock, reinforcement, forms, placement, finishing, and disposal are included. The following ranges are broad U.S. planning figures; contractors may combine tasks into one installed rate.
| Quote component | Low | Average | High | Typical basis |
|---|---|---|---|---|
| 4000 PSI ready-mix | $150 per yd³ | $185 per yd³ | $220 per yd³ | Delivered bulk order |
| Base preparation and compaction | $1 per sq ft | $2.50 per sq ft | $5 per sq ft | Excavation and aggregate vary |
| Forms and reinforcement | $1 per sq ft | $2.50 per sq ft | $5 per sq ft | Mesh, rebar, edges, and layout |
| Placement and finishing labor | $3 per sq ft | $5.50 per sq ft | $9 per sq ft | Access, finish, and crew size |
| Pump or specialty placement | $500 per job | $900 per job | $1,500+ | May include minimum service charge |
These component ranges are not meant to be added mechanically. Some crews quote a combined installed price, and job conditions can change which tasks are necessary. For example, a slab over an existing stable base may require less excavation than one on soft or uneven ground.
Concrete quantity is commonly estimated as length × width × thickness in feet, divided by 27 to get cubic yards. Contractors often add about 5%-10% for spillage, uneven excavation, and overage.
Ask for the concrete quantity, delivery charge, site-prep scope, reinforcement, and finish as separate quote details. That breakdown helps identify whether a low bid excludes important work or a higher bid includes more complete preparation.
How slab thickness, reinforcement, and mix specs change price
Thickness is a major cost driver because it increases both concrete volume and handling. A 4-inch slab uses about 1.23 cubic yards per 100 square feet; a 6-inch slab uses about 1.85 cubic yards for the same area. That 50% increase in volume raises material cost, although labor and site costs do not necessarily rise by the same percentage.
Reinforcement adds cost according to the design and local practice. Welded wire mesh may add roughly $0.20-$0.60 per square foot for material, while rebar can run about $0.50-$1.50 per square foot before installation. Closely spaced bars, thickened edges, or engineered structural requirements can cost more.
Mix specifications matter too. In some markets, 4000 PSI may cost only $5-$20 per cubic yard more than a comparable 3000 PSI mix; in others, the difference is larger or bundled into the quoted mix price. Air entrainment, fiber, low-water requirements, or special placement additives may add approximately $5-$30 per cubic yard, depending on supplier and specification.
Confirm that 4000 PSI is required by the design or intended use before paying for a stronger mix. The strength rating alone does not determine durability: correct water content, placement, finishing, curing, and joint layout also affect performance. Adding water at the site without approval can compromise the specified strength.
Order size can shift the per-yard price. A 10-yard order is more likely to receive standard bulk pricing than a 1- or 2-yard order, which may trigger a short-load fee. Ask the supplier how its minimum charge is calculated and whether the delivery price includes waiting time.
Delivery distance and placement access add separate charges
Delivery cost depends on the batch plant’s distance, truck availability, order size, and time on site. A supplier may include a standard delivery radius in the per-yard rate, then charge more for longer travel or extended unloading. A truck that cannot reach the pour may require a concrete pump, buggy, or wheelbarrow handling.
Short-load fees commonly add $75-$300 or more when the order is below the supplier’s minimum economical load. Pumping often adds $500-$1,500+, particularly when a minimum mobilization charge applies. Remote access, steep driveways, narrow gates, overhead wires, or long hose runs may increase the quote or require a different placement plan.
Removal and preparation are separate from the mix price. Breaking out an old slab may cost approximately $2-$6 per square foot, with hauling and disposal affecting the total. Excavation, roots, unsuitable soil, or a base that needs rebuilding can add another $1-$5 per square foot or more depending on depth and disposal distance.
Measure the truck route and confirm where the chute can discharge before accepting a delivery estimate. A contractor’s site visit can identify whether direct chute placement is realistic or whether pumping and additional crew time need to be included.
What 4000 PSI slab jobs cost at three common sizes
These examples show typical project totals using delivered concrete and normal residential installation. They assume a 4-inch slab, modest preparation, a basic broom finish, and no major demolition or difficult access. Regional labor rates and project minimums can change the totals.
| Project | Concrete volume | Labor assumption | Estimated total |
|---|---|---|---|
| 200-sq-ft patio | About 1.0 yd³ before waste; order about 1.1 yd³ | 2-3 workers, 8-12 hours | $2,000-$3,500 |
| 500-sq-ft driveway apron | About 2.3 yd³ before waste; order about 2.5 yd³ | 3-4 workers, 1-2 days | $4,000-$8,000 |
| 1,000-sq-ft garage slab | About 4.9 yd³ before waste; order about 5.2 yd³ | 4-5 workers, 1-2 days | $8,000-$16,000 |
Small jobs can have a higher price per square foot because delivery minimums, forming, mobilization, and crew setup are spread across fewer square feet. A garage slab may also require thicker edges, vapor barriers, more reinforcement, or an engineered design, so the example is not a substitute for a plan-specific estimate.
For a quick material check, multiply slab area by thickness and convert the result to cubic yards. A 500-square-foot, 4-inch slab is 500 × 4 ÷ 324, or about 6.17 cubic yards? No: the correct conversion uses area in square feet times thickness in feet, divided by 27; 500 × 0.333 ÷ 27 equals about 6.17 cubic yards. Add the contractor’s appropriate overage.
Regional concrete prices vary with freight and crew rates
Ready-mix pricing is local because concrete is heavy, perishable, and delivered from nearby batch plants. In lower-cost rural markets, delivered 4000 PSI mix may sit near $150-$180 per cubic yard. Large metro areas and regions with higher cement, fuel, or labor costs may reach $190-$240 per cubic yard or more.
Installed slab prices often vary more than the mix itself. A typical project in a lower-cost market may be 10%-20% below a national planning range, while high-cost coastal metros can run 15%-35% above it. Urban access restrictions and higher disposal fees can add to the difference; rural jobs may have higher travel charges despite lower hourly wages.
Seasonal demand can also affect scheduling and quote availability. Busy spring and summer periods may bring longer lead times, while cold-weather placement can require blankets, accelerators, or other protection. Those measures may add $100-$500 or more on a small residential pour, depending on weather and project size.
Use local written quotes rather than a national per-yard figure as the final budget. Ask whether the quote accounts for the local delivery radius, seasonal conditions, sales tax where applicable, and any minimum truck or crew charge.
4000 PSI or 3000 PSI concrete for a residential slab
Where plans allow either mix, 3000 PSI concrete may save roughly $5-$20 per cubic yard compared with 4000 PSI. For a small pour, that difference may amount to only a few dollars per square foot—or less—because installation and preparation make up much of the bill. The savings should be weighed against the project specification, expected loads, exposure, and local code requirements.
A stronger mix is not automatically a substitute for adequate slab thickness or reinforcement. A driveway carrying heavier vehicles, a garage foundation, or a structural slab may have explicit strength and steel requirements. For patios and walkways, the specified mix should still match local climate, soil, and design conditions.
Repairs can be less expensive when damage is limited to a small area and the slab remains structurally sound. Patching or resurfacing might cost about $3-$10 per square foot, while removal and replacement commonly costs more because of demolition, hauling, new base work, and forming. Widespread cracking, settlement, or drainage problems can make a surface coating a short-lived fix.
Compare the full project specification, not just the PSI number or the per-yard price. A contractor should identify whether the strength rating is required and explain the thickness, reinforcement, joints, and curing plan included in the quote.
Control the order size and finish to lower slab costs
Accurate measurements and a clear project boundary help prevent costly over-ordering or a second truck trip. Confirm the planned thickness, edge details, slope, and finished dimensions before the pour. A 5%-10% material allowance is common, but unusual excavation or a highly irregular footprint may require a different estimate.
Choose a functional finish when appearance is not a priority. A standard broom finish generally costs less than stamped, colored, exposed-aggregate, or polished concrete. Decorative options can add roughly $2-$12 per square foot or more, depending on complexity, color, sealing, and local labor rates.
Prepare the site before delivery if the contractor permits it and the work is within the owner’s capability. Clearing loose debris, ensuring access, and having utility locations marked can reduce delays, but excavation and base compaction should meet the project requirements. Poor preparation can cause settlement or drainage problems that outweigh any short-term savings.
Compare at least three itemized bids for the same thickness, mix, reinforcement, finish, and disposal scope. Check the concrete quantity, short-load charges, pump fee, curing method, cleanup, and warranty or workmanship terms. Aligning those details makes price differences easier to interpret than comparing a single total.