How Much Does Laying a Concrete Slab Cost?

Concrete Slab Simple Cost Guide

This guide will talk you through everything from how to calculate the cost of a concrete slab, to the cost of a concrete slab for a house, extension or patio. It will help you know how find professionals near you and get the right value for your money.

We'll cover the following topics in this pricing guide:

1. What is a Concrete Slab for?
2. Average Cost of Laying a Concrete Slab
3. Hiring A Concrete Slab Layer Cost
4. Types of Concrete Slabs and Their Costs
5. How to Calculate Concrete Slab Cost
6. Find Verified Concrete Professionals on MyBuilder
7. FAQs Common Questions

What is a Concrete Slab for?

A concrete slab is a flat layer of concrete which is used for many different things. From forming floors for sheds, to foundations to houses. It creates a level floor and also protects structures from the ground and elements.

Concrete slabs come in several types, including reinforced slabs, which are ideal for supporting heavy loads, and pre-stressed slabs that offer even more strength.

Several factors can influence the overall cost of a concrete slab, from the size and thickness of the slab to regional price differences and labour rates. Find out everything you need to know today.

Average Cost of Laying a Concrete Slab

When working out the cost of a concrete slab, there are a few key things that will shape the final price.

The size of the area, the materials you choose, and how straightforward (or tricky) the job is all play a big part. Keeping these in mind makes it easier to budget and avoid any surprises along the way.

The average cost to lay a slab of concrete can vary widely. For a light garden or shed base, you might expect £40 to £80 per m² installed. If you're installing a heavier garage or industrial slab, costs could reach £60 to £140 per m² installed.

Here’s a quick summary of concrete slab costs per square metre:

Type of concrete slab	Cost
Light garden/shed base	£40–£80/m²
Garage/industrial slab	£60–£140/m²

MyBuilder tip: Always talk to multiple professionals so you know how much your concrete slab will come to.

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Hiring A Concrete Slab Layer Cost

The average cost associated with labour for a concrete slab ranges from £15 to £50 per square metre. This variance depends largely on the required tasks and the intricacy of the job.

Typical labour tasks include:

• Site Preparation: Involves cleaning and preparing the site surface, which is crucial for a stable slab.
• Laying Sub-base: This stabilises the area and provides a solid foundation for your concrete.
• Pouring Concrete: Careful pouring is essential to achieve an even and durable slab.
• Finishing Work: This includes levelling and smoothing for a professional finish.

Hiring a tradesperson for concrete slab installation can be worth the investment, as their skill helps ensure a finish that helps prevent future problems. It’s important you talk to a few different professionals before getting the project started.

MyBuilder can easily connect you to different concrete companies near you, so you can find the right service from the comfort of your phone. Simply post your job and include some details, then you will be connected to suitable companies in your area.

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Types of Concrete Slabs and Their Costs

A variety of materials contribute to the overall cost of laying a concrete slab.

Here’s an overview of different concrete materials and their typical costs:

Material	Cost
Ready-mix concrete (per m³)	£100–£160
Sub-base (installed, 100 mm)	£6–£16 / m²
Reinforcing mesh	£3.5–£6 / m²
Damp-proof membrane	£0.4–£0.6 / m² material

Here is a description of the different types of concrete slabs you can get, to help you make your decision:

Traditional concrete slabs: Traditional slabs are poured on-site and left to cure, costing £65–£85 per m². They are affordable, versatile, and easy to install.

Reinforced concrete slabs: These include steel mesh or rebar for added strength, costing £90–£120 per m². These are suitable for heavy loads and are less likely to crack.

Precast concrete slabs: Made off-site and installed on-site, costing £100–£135 per m². These are reliable and easy to install.

How to Calculate Concrete Slab Cost

Getting a clear idea of how much a concrete slab will cost is key to keeping your project on budget. By factoring in the main cost drivers and planning carefully, you’ll be better prepared and less likely to face unexpected expenses.

How to calculate concrete slab costs:

Step 1: Measure the Area: Start by measuring the full size of the area where the concrete slab will be laid. This will give you the basis for your cost estimation.

Step 2: Choose your materials: Calculate the amount of concrete, reinforcement mesh, and formwork needed. Refer to standard measurements:

• Concrete: Typically estimated per cubic metre (£65 - £85 per m³)
• Reinforcement Mesh: Priced per square metre (£25 - £30 per m²)
• Formwork: Measured in linear metres (£10 - £15 per linear metre)

Step 3: Labour costs: Account for the labour costs involved in the project. Tradespeople usually charge between £20 and £35 per hour or £15 to £25 per square metre. Consider the complexity and duration of the job to estimate the total labour cost.

Step 4: Additional Costs: Include other potential expenses such as site preparation, excavation, transportation, and finishing:

• Site Preparation: Typically ranges from £50 to £100
• Excavation: Around £20 - £30 per hour
• Transport Costs: Depend on distance, usually £50 - £100
• Finishing (e.g., polishing, sealing): £5 - £10 per m²

Step 5: Talk to professionals: Consult professional contractors to understand the total cost.

By following these steps, you can develop an accurate estimate for your concrete slab project. Proper planning and detailed cost estimation can make sure you feel prepared for every step of the way.

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Find Verified Professionals on MyBuilder

Need a tradesperson for your concrete slab project? Discover suitable, verified groundworkers near you on MyBuilder. It’s easy to post your job, then get in touch with professionals who are ready to offer solutions.

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FAQs Common Questions About Concrete Slab Laying Costs

What factors influence the cost of laying a concrete slab?

Several factors influence the cost of laying a concrete slab, including the size and thickness of the slab, the type of concrete used, the location of the project, the complexity of the installation, and any site preparation required. Additionally, the cost can be affected by the labour rates in your area and the accessibility of the site.

What is the average cost of pouring a concrete slab per square foot?

The average cost of pouring a concrete slab typically ranges from £65 to £85 per square metre in the UK. This estimate includes materials and labour but can vary based on the factors mentioned earlier, such as slab thickness and complexity.

Are there any hidden costs to consider when calculating the cost to lay a slab of concrete?

Yes, there can be hidden costs associated with laying a concrete slab. These may include site preparation such as excavation or grading, the need for permits or inspections, and potential drainage solutions.

What are the potential long-term benefits or savings of investing in a high-quality concrete slab?

Investing in a high-quality concrete slab can lead to significant long-term benefits, including increased durability, reduced maintenance costs, and enhanced property value. A well-installed slab can last for decades, reducing the need for costly repairs or replacements over time.