The price of a 100 m² exposed aggregate concrete project depends on several specific factors, such as ground preparation, slab thickness, and chosen finishes. On average, for an area of this size, the overall budget falls within a realistic and predictable range. Here's a clear and detailed explanation to help you understand how much to budget and why.
What a 100 m² exposed aggregate concrete project represents
A 100 m² exposed aggregate concrete project typically corresponds to a large patio, driveway, courtyard, or outdoor area around a house. This size allows for cost optimization, as the price per square meter often decreases as the surface area increases.
Exposed aggregate concrete is popular For :
- its natural decorative appearance with visible aggregates
- its good resistance to wear and weathering
- its non-slip surface, suitable for high-traffic areas
At 100 m², the construction site is large enough to require professional organization, with continuous implementation and precise coordination of the stages.
What is the average price per square meter for 100 m²?
For a standard project, the price of exposed aggregate concrete typically ranges from €50 to €120 per square meter. This variation depends on the level of service and site constraints.
For 100 m², this represents an estimated total budget of:
- between €5,000 and €6,500 for a simple project
- between €6,500 and €9,000 for a standard, well-equipped project
- up to €10,000 or more for high-end finishes or special requirements
In most cases, a well-balanced project is around €65 to €85 per m², or approximately €6,500 to €8,500 for 100 m².
What factors influence the final price?
The price is never fixed, as several parameters directly influence the total cost of the project.
The most important factors are:
- the condition of the land before work
- the required slab thickness depending on the intended use
- the type of aggregates chosen
- ease of access to the construction site
- the complexity of the shapes and finishes
A prepared and stable surface will cost less than one that needs excavating or reinforcing. Similarly, a surface intended solely for walking will be less expensive than one designed for vehicle traffic.
What is generally included in the price for 100 m²
A complete quote for 100 m² of exposed aggregate concrete typically includes several services. It's important to clearly identify these services to compare offers.
The price usually includes:
- soil preparation and leveling
- the supply of concrete and aggregates
- the placement and pouring of the concrete
- surface treatment to reveal the aggregates
- basic cleaning and finishing
Depending on the project, the following may be added:
- expansion joints
- boundary lines
- a surface protection treatment
These elements may increase the price, but they also improve durability and the final appearance.
Example of a concrete budget for a standard project
Let's take a simple and realistic example to illustrate the cost of a 100 m² project.
For exposed aggregate concrete at €75 per m², the calculation is straightforward:
- €75 x 100 m² = €7,500 for the entire project
This budget typically corresponds to:
- a standard width slab
- a classic soil preparation
- common aggregates
- a clean and durable finish
If the terrain is more complex or additional options are added, the budget may increase to a range of €8,500 to €10,000, which should not be surprising if the quote is detailed from the outset.
Why a 100 m² surface area offers better value for money
A 100 m² surface area is often considered ideal for an exposed aggregate concrete project, as it helps to spread out some of the fixed construction costs. The mobilization of equipment, personnel, and logistics is optimized over a larger area, which reduces the price per square meter.
Regarding this type of project:
- The implementation time is better utilized.
- material losses are limited
- The pouring is done continuously, resulting in a more homogeneous finish.
This is why the price per square meter for 100 m² is often more attractive than for smaller areas, while offering a more uniform aesthetic result.
Exposed aggregate concrete, plain or decorative: impact on the budget
The level of finish chosen has a direct impact on the final price of the project. Simple exposed aggregate concrete, with standard aggregates and a natural color, remains within a controlled price range.
However, the budget increases when you choose:
- specific or colored aggregates
- a particular shade of concrete
- differentiated decorative zones
- specific shapes or cutouts
These aesthetic choices bring real visual value, but they require more precision and time, which explains the increase in the overall cost per 100 m².
Price difference between a pedestrian zone and a vehicular zone
The intended use of the surface strongly influences the price of exposed aggregate concrete. A pedestrian area requires a lighter structure than an area intended for vehicle traffic.
For a pedestrian area:
- standard slab thickness
- cost plus content
- simpler implementation
For a surface suitable for vehicles:
- thicker slab
- appropriate reinforcement
- more thorough soil preparation
Over 100 m², this difference can represent several thousand euros. That's why it's essential to clearly define the intended use from the outset in order to obtain a price that is consistent and appropriate for the project.
