A concrete slab is versatile and durable that can be used in a wide variety of applications, including driveways and patios. The average cost of a concrete slab is $8.21 per square foot for materials and installation. Based on this average cost, a 10x10 concrete slab will cost $821, a 20x20 concrete slab will cost $3,284, and a 30x30 concrete slab will cost $7,398.
The cost of a concrete slab depends on many factors, including size, thickness, reinforcement, base, and finish.
|What you can expect|
|Range per square foot:||$7.55||$9.14|
|Range for this type of project:||$2,266||$2,741|
Concrete Slab Installation Cost
Cost of 4+"-thick, fibermesh-reinforced concrete with 3500 PSI, and a practical, attractive broom finish. Rate is inclusive of local delivery, as well as standard excess for perfect installation and occasional future touch-ups.
Basic Labor for Concrete Slab Installation
Standard labor cost for cement slab installation, from a full site assessment to preparation, installation, and cleanup. Height and slope will be assessed to plan layout, and loose soil will be lightly graded and removed. Form will be set and reinforced, then concrete will be poured and finished. Specialty services, such as excavation, gravel base layer, compaction, or hardscape demolition will incur additional costs.
Job Supplies for Concrete Slab Installation
Supplies to ensure outstanding installation include reinforcing materials and additives, isolation materials, and agents for chemical release and cleaning.
Equipment Allowance for Concrete Slab Installation
Equipment allowance for perimeter form boards and stakes, 48" bull float, reinforcing bar cutters, and mixing box with mortar hoe. This is assessed as a daily rental fee, while single-use equipment will incur separate charges.
Slab Excavation Labor (Optional)
Professional excavation with hand tools, to a uniform depth up to 8" below surface level. This service is offered for sidewalks, slabs, and driveways. Excavated material will be distributed on-site.
|concrete slab cost|
|National Avg. Materials Cost per square foot||$1.76|
|National Avg. Cost (labor and materials) for 300 square foot||$2,463.42|
|National Cost Range (labor and materials) for 300 square foot||$2,229.50 - $2,697.34|
Concrete slabs can be poured in almost any size and shape. That said, there are some standard concrete slab sizes you can use for general reference when considering costs. Refer to the calculator for specific details about your project.
The national average ranges to pour common concrete slab sizes:
|Slab Size||Square Footage||Average Cost||Cost Range|
|8x10||80||$657||$594 - $719|
|10x10||100||$821||$743 - $899|
|10x20||200||$1,642||$1,486 - $1,789|
|12x12||144||$1,182||$1,070 - $1,294|
|20x20||400||$3,284||$2,972 - $3,596|
|24x24||576||$4,728||$4,279 - $5,178|
|24x30||720||$5,911||$5,349 - $6,472|
|30x30||900||$7,389||$6,687 - $8,091|
Most concrete project prices and planning use square footage. There are three feet in a yard, so divide your feet by three to get the yard measurement of your project. Concrete costs an average of $73.89 per square yard, because this is nine times bigger than a square foot.
Aside from size and square footage, other factors that affect the cost per square foot for your concrete slab include
Reinforcement is important for foundations to build a solid structure. Not all concrete projects need reinforcement, but it is likely required if it needs to bear a lot of weight. For shed and home foundations, reinforcement is a good idea.
There are a few different options for concrete reinforcement. Expect to pay more per square foot for concrete reinforcement on top of other project costs.
|Augment the concrete mixture with sand and other amendments||
|Adding steel rebar||
|Reinforcing the edges||
Depending on the location, you may need to level the ground and do other preparations. Ask if your land needs clearing or grading before pouring your concrete slab.
Before pouring a concrete slab, you also need to lay a base material between the ground and the concrete. This helps to prevent cracking, settlement and helps with drainage. The base material is usually made of gravel or sand depending on where you live. It is often included in your project bid but confirm with your professional before moving forward.
Labor costs will vary, but expect to pay an average of $6.45 per square foot for labor costs. If the contractor runs into any issues or exceeds the allotted time, you may also have to pay for extra labor.
Labor may cost more if you hire a seasoned pro or if the concrete market in your area is competitive. We recommend getting at least three project bids to ensure you’re not overpaying for labor.
If you need to have old concrete removed, this will also add to your total costs. The average cost of concrete removal is $8 to $10 per square foot.
Removing old concrete can also add to the length of your project. Ask for an estimate from your contractor to understand what to expect from the timeline.
Different concrete slab thicknesses are used for different purposes. In general, expect to pay for a 4 - 6 inch thick concrete slab for most residential projects. You may be able to order up to 8 inches thick if the concrete will need to hold heavy weight, or as slim as 2 inches.
Thicker concrete will cost you more and take more time to pour, so choose wisely when planning your project.
|Concrete Slab Use||Recommended Thickness|
|Driveway||4 inches (for standard cars)
6 inches (for RVs)
|Garage pad||6 inches|
Complex and uniquely shaped areas will also need more preparation before pouring concrete, which can also cost more.
One of the disadvantages of concrete is that it isn’t very attractive. There are many finish options to customize and beautify your concrete slab. Most finishes will be about $4 - $8 per square foot in added cost, but high-end stamping can cost you quite a bit more. Be sure to ask for a quote as you plan your finish and sealant.
|Finish Type||Best Used For|
|Troweled finish||For a smooth finish without any grip|
|Broom finish||Creates rough textured concrete for traction control and slip-resistance|
|Stamped concrete||Creates a patterned finish in concrete for aesthetics and traction control|
|Salt finish||Adds a decorative rough texture – good for swimming pools and other wet areas|
|Exposed aggregate||Adds an interesting design element to polished concrete floors|
|Colored and stained concrete||Adds a tint to otherwise plain concrete using pigment or stains. Add this to other finishes or underneath a sealant to protect the tint|
|Concrete sealer||Use sealant on most decorative finishes or for slabs that will outdoors.|
Depending on the nature of your project, a layer of concrete sealant will be an extra cost. Typical sealants are penetrating, acrylic, polyurethane, or epoxy. Epoxy and polyurethane tend to provide the thickest, most durable finish.
A helpful way to estimate the cost of your concrete project is by the type of project planned. Below, we’ve included cost estimates for common residential projects. The final cost will depend on your preferences and local market, as well as the sizes of the project.
The average cost of a standard 2-car driveway is $5,254. Costs will increase if you opt for sealant or a special finish. Most driveway projects also need concrete removal, so ask your contractor for a quote that includes it.
A concrete or cement patio can give you a more usable outdoor space. The larger the patio and the more detail you need, the higher the cost will be. Pouring concrete for a patio will cost an average of $2,364. Concrete pool decks may cost more since they need special shapes and features that make them more complex than a simple patio.
One of the hottest trends in kitchens is concrete countertops. These unique countertops are durable, modern, and perfect for rustic and industrial-inspired kitchens. The cost of professional concrete countertops averages between $2,100 to $5,250 given the specialized nature of the project.
From a new home to a storage shed, concrete foundations are essential to a solid, strong structure. Concrete foundations need reinforcements like rebar (steel), so they cost more than a basic project. A concrete foundation costs an average of $8,132, with most homeowners spending between $3,993 and $12,200 in total.
You may be surprised to know that there are many different types of concrete to choose from. They vary in strength, durability, heat resistance, and workability.
Installing a concrete slab is a complex project. Each step requires specialized tools and knowledge. Any errors during preparation, pouring or finishing can lead to cracking, poor drainage, or a bad finish. For best results, homeowners should consider hiring a professional for this job.
When hiring a professional, be sure to get bids for your concrete project to help you compare prices and save. Your bid should explain the cost of materials, labor, preparation, installation, and finishes.
Yes, you technically can pour your own concrete, but big jobs are best left to professionals. For smaller and more basic projects, here is what you need to know:
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⏰ How long does the average concrete installation take?
📏 How thin can my concrete slab be?
💵 I need a new concrete slab for my house. How much will that cost?
💵 How much does a 10x10 concrete slab cost?
💵 How much does a 12x12 concrete slab cost?
💵 How much does 20x20 concrete slab cost?
💵 How much does a 30x30 concrete slab cost?