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How Much Does a 50×50 Concrete Slab Cost in 2024?

Concrete slabs are common elements of construction projects. They are flat and horizontal surfaces made by pouring concrete. A 50×50 concrete slab is an excellent choice if you need a foundation or floor for a warehouse, barndominium, or large garage. 

To accurately compute the cost of a concrete slab, it is vital to learn about its components and characteristics. A concrete slab’s cost depends on how thick it is, its size, and the type of building materials it contains. 

In this article, we will tell you how to determine the cost of a concrete slab to ensure that you prepare an adequate budget if you need to build one. 

What Factors Determine the Cost of a 50×50 Concrete Slab?

Several factors affect the cost of a 50×50 concrete slab. The most crucial factor is the size of the slab. It wouldn’t surprise you to discover that you will need more building materials to make a large concrete slab than a smaller one. It is also more complicated to make a large slab. This means you’ll need a larger crew which entails higher labor expenses. 

The site where you will make the concrete slab also plays a crucial role. When you hire a contractor, your location can affect labor expenses because labor rates are higher in some locations. We mentioned building materials earlier, and the price of building materials also hinges on your location. If there are multiple suppliers in your area, they will try to outdo their competitors by lowering their prices. If there are a limited number of suppliers in your area, they can afford to put a premium on their prices since they are your only options. 

How Much Does a 50×50 Concrete Slab Cost?

Concrete slabs have several characteristics, and you need to know about these characteristics since they can affect the cost of the slab. 

Per Thickness

Concrete slabs can be thick or thin. The level of thickness is essential because a thicker slab uses more materials than a thin slab. A thick concrete slab is stronger and more durable. Concrete slab floors for barndominiums, garages, pole barn homes, and warehouses should be thick enough to handle the weight they need to bear. Thick concrete slabs can last longer but also increase your garage, warehouse, or barndominium cost

ThicknessCost per square foot
4 inches $5.35
5 inches  $5.80
6 inches $6.20 
8 inches$7
This table shows the average cost per square foot of a concrete slab in 2023 depending on thickness (1)


Making a concrete slab entails using some tools, materials, and pieces of equipment. We call these inclusions because they are included in almost any concrete slab. A cement mixer is an example of inclusion. While it is not unheard of to mix concrete manually, this is only recommended for small concrete slabs. A 2,500 square feet concrete slab requires a large amount of concrete that requires the use of a cement mixer. Some contractors have their own equipment, and you can rent from a local rental company if they don’t have one. 

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Inclusion Cost 
Site preparation                $1-$2 per square foot (2)
Concrete Rebar $1.40 – $1.85 per 2 feet (3)
Wire Mesh$0.28 per square foot (4)
The table shows the average costs of concrete slab inclusions in 2023.

With Additional Features

While bare concrete slabs will suffice for some projects, some construction projects require concrete slabs with additional features. For example, if your floor plan includes a basement, you need to ensure that the concrete floor of your basement is safe from leaks. Basements are notoriously prone to moisture and leaks that can result in damage to the things you have in your basement. Leaks can also promote the growth of mold and mildew. Mold and mildew are health hazards that can cause respiratory issues to a structure’s occupants. 

One thing you can do to limit moisture in the basement is to install a moisture barrier on the concrete slab floor. A moisture barrier prevents moisture from seeping through the concrete from the ground. Aside from using a vapor barrier, you can also limit moisture levels in your basement by ensuring proper ventilation. 

Features Cost
Vapor barrier $0.50-$0.70 per square foot (5)
Stamped concrete$9 – $20 per square foot, inclusive of materials (6)
Stained concrete$2 – $4 per square foot, staining only (7)
This table shows the average costs of extra features of concrete slabs.

50×50 Concrete Slab Cost Breakdown

Let us now look at the breakdown of the cost of a 50×50 concrete slab. 

Concrete Bag Cost Estimate

Concrete bags cost between $4.50 and $27 each (9). The difference in prices depends on the type of mixture you need. Concrete bags also come in different sizes, and large bags cost more. These are estimated costs and can change depending on the prevailing inflation rate. 

Labor Cost Estimate

Hiring contractors costs money, and you can expect to pay between $2 and $3 per square foot of concrete (10). Note that these estimates are for basic concrete slabs and can be higher. If you hire a veteran contractor, the rates can be higher since veteran contractors often charge more than less experienced contractors. 

Truck Cost Estimate

It is best to buy wet concrete to make a 2,500-square-foot concrete slab. Wet concrete costs between $125 and $133 per cubic yard (11). Buying wet concrete is better for large projects because there is no need to mix concrete manually. You can save time and finish your project on schedule. Aside from the actual wet concrete cost, some suppliers also have fuel surcharges of between $40 and $50 per truckload if the site is outside their delivery area (8).

How Do You Calculate the Cost for a 50×50 Concrete Slab?

Now that we’ve covered the basics of concrete slabs, it’s time to tell you how to compute the cost of a 50×50 concrete slab. This article will present you with several price cost averages you can use to determine a concrete slab’s cost in several ways. 

Let’s start by determining how much concrete you need to make your 6-inch thick 50×50 concrete slab. Using this calculator, you need 46.296 cubic yards of concrete mix for your slab. We will add a 10% waste allowance to this figure, so you will need a total of 50.93 cubic yards of concrete. One cubic yard of concrete costs $137, according to the National Ready Mixed Concrete Association (11), so 50.93 cubic yards of concrete costs $6,977.41. 

concrete volume estimate for 50x50 slab
Concrete volume estimate for 50×50 slab

We can also compute cost on a per-square-foot basis. A 50×50 concrete slab equals 2,500 square feet. One square foot of 6-inch thick concrete costs $6.20 (1). This means that you need to spend around $15,500. When we add the 10% waste allowance, the total cost comes to $17,050.

Should You DIY or Hire a Contractor for Your 50×50 Concrete Slab Project?

We recommend hiring a contractor to make a 50×50 concrete slab. A slab of this size is too complicated to make by yourself, and you can get better results if it gets handled by professionals. 


The ability to compute the cost of a 50×50 concrete slab is valuable because it will help you prepare a suitable budget. This can help ensure that your construction projects proceed on schedule. It can also help ensure you don’t have to stop the project midway because of budget constraints. In addition, you can use the computations outlined above to compute the cost of concrete slabs, whatever their size may be. Ensure you follow our Facebook page for other useful articles about financing a barndominium, barndominium insurance, and builder reviews. 


  1. How Much Does A Concrete Slab Cost In 2023? Homeadvisor.
  2. Cost Of A Concrete Driveway ConcreteNetwork
  3. What Are Common Rebar Prices for Concrete Projects? Angi
  4. How to Compare the In-Place Cost of Wire Mesh Versus Synthetic Fibers ABC Polymer Industries
  5. How Much Does Crawl Space Encapsulation Cost? Angi 
  6. Stamped Concrete Cost For Patios, Driveways & More ConcreteNetwork
  7. Concrete Floor Cost – What You’ll Pay For Polished Or Stained Concrete ConcreteNetwork
  8. How Much Does Concrete Cost? Angi
  9. How Much Does a New Concrete Slab Cost? Angi
  10. How Much Does It Cost to Have Concrete Delivered in Your Area? Fixr
  11. Ready Mixed Concrete Industry Data Survey. NRMCA