How to lay artificial grass on uneven concrete

How to lay artificial grass on uneven concrete


I can provide a technical perspective if you consider installing artificial grass on uneven concrete surfaces. Although I work in the concrete industry, I understand that artificial grass can be visually appealing and practical, especially on expansive balconies or decks.

Artificial grass has many benefits, such as not requiring mowing, retaining its green appearance, feeling soft and comfortable, and being safer for children. However, I have no involvement or interest in the grass business.

It’s worth noting that the following technical information may be lengthy, as it’s a complex subject. Nonetheless, I hope it helps you make an informed decision about installing artificial grass on a concrete surface, as that is my only wish.

What is essential when laying artificial grass on uneven concrete

So I would like to provide more detailed information regarding installing artificial grass on uneven concrete.

To begin with, you can install fake grass on uneven concrete, provided that the water drainage or the tilt of the slab is working correctly.

This means the ground must be sloped enough to allow water to flow and drain away from the surface. If the unevenness of the concrete results in a deep puddle in the middle during rain, it would be unwise to install artificial grass as it won’t solve the issue.

Neither sand nor landfill can fix it, as water will accumulate when it rains, freeze in the cold, and even slowly corrode the concrete pores.

It’s also crucial to address any other problems with uneven concrete that may pose a risk to your property, such as cracks or structural damage. Fixing these issues before installing artificial grass will ensure your surface is stable and safe.

Furthermore, even if you install artificial grass on uneven concrete, it can still look beautiful and function well, depending on the degree of unevenness.

Many households even have imperfect grass due to frost thawing. In farming fields, the surface soil is often clay or other delicate ground matter that can cause water capillaries to rise and lead to uneven ground.

One pro side of artificial grass is that, unlike natural grass, fake grass doesn’t require watering, mowing, or fertilizing, making it an eco-friendly and cost-effective alternative. It’s also durable and can withstand heavy foot traffic, perfect for high-traffic areas like sports fields and playgrounds.

You need more than artificial grass to salvage deep puddles.

Preparing the Concrete Surface

When preparing a concrete surface, it is crucial first to check the water flow and drainage system to ensure that it flows in the correct direction and works correctly.

If there are any issues, such as deep puddles, you can use a diamond cup wheel and a construction vacuum cleaner to grind the area and remove debris.

Next, fill the area with a compound appropriate for the climate in which you live. If you are dealing with living spaces under concrete, you must check whether you need to install extra drainage for water control or other waterproofing measures.

Remember that if drainage works, it is up to you if you want to level it or not. But if you want to make it smoother, some steps are laid ahead that you can use to achieve your desired result.

It’s important to avoid using self-leveling compounds if you want to control water flow. Instead, you can level the surface with compound by following these steps:

1. Clean the surface thoroughly by removing debris, dust, or loose particles. If you are dealing with water, you can use a pressure washer to remove it. If the area is dry, you can use a concrete grinder and vacuum cleaner to remove debris.

2. Prepare the surface by using a concrete cleaner and an etcher. This will help the compound bond better to the surface.

3. Mix the compound according to the instructions on the package. Make sure to mix it well and avoid any lumps. Usually, the package will have mixing and waiting time instructions. The compound takes some time to wet, and it’s ready to use when you remix it. Only add water after mixing, even if it feels stiff. It usually becomes more runny when you remix it; more water will weaken it.

4. Apply the compound by pouring it at the beginning of the old low spot and screeding it with an aluminum screed with sawing motion so the surface will become level as you move it forward. At this point, marking the love points with white chalk or something similar is essential. This will help you keep track of the low spots.

5. Smooth the surface using a trowel or a float. Make sure to apply even pressure to avoid any bumps or unevenness.

6. Allow the compound to dry completely according to the instructions on the package.

7. Sand the surface to smooth out any rough spots or bumps.

Follow manufacturer’s instructions when installing artificial grass.

Laying the Artificial Grass

You might have ended up doing some leveling work for your uneven concrete. How you proceed would be like this. Or if you skipped the steps before, something like this would be what you would be doing;

1. Measuring and cutting the artificial grass: Before you begin, accurately measuring the area where you want to lay the artificial grass is essential.

You can do this by using a measuring tape or ruler. Please measure the length and width of the area and multiply them to get the total square footage.

This will help you determine how much grass you need and avoid buying too much or too little. Once you have the measurements, use a sharp utility knife to cut the grass to the correct size. Make sure to cut it evenly and avoid any jagged edges.

2. Applying adhesive to the concrete: If laying the artificial grass on concrete, you must prepare the surface first.

Clean the concrete surface thoroughly, ensuring it’s free of debris, dirt, and dust. Once the surface is clean, choose an adhesive designed for artificial grass installation. Using the proper adhesive is essential to ensure the grass adheres appropriately.

Using a trowel, apply a generous amount of adhesive to the concrete, covering the entire area. Spread the adhesive evenly to avoid any clumps or bumps.

3. Weed barrier if there are areas without concrete under the artificial grass: If there are areas without concrete under the artificial grass, you need to install a weed barrier to prevent weeds from growing through the grass.

You can use a geotextile fabric to create a barrier that allows water to drain through but prevents weed growth.

4. Laying the artificial grass on the concrete: Once the adhesive is applied, you can start laying the artificial grass. Begin by unrolling the grass and positioning it in place.

Unroll it in the same direction to avoid any wrinkles or bumps. As you lay the grass, gently press it to ensure it adheres properly to the adhesive. You can use a carpet kicker to secure the grass in place further. If installing multiple pieces of grass, align the seams properly to create a seamless look.

5. Securing the edges of the artificial grass: After laying the artificial grass, securing the edges is essential to prevent any movement or shifting.

To do this, use landscape pins to anchor the edges of the grass to the ground. Place the pins every 6 inches along the edges of the grass. You can also use a border around the edges to create a clean and polished look. Make sure to choose a border that complements the color and texture of the grass.

Following these detailed steps ensures that your artificial grass is laid out smoothly and securely. With proper installation, your artificial grass can provide a beautiful and functional outdoor space for years.

Maintaining the Artificial Grass

Artificial grass is one way to go for anyone looking for a low-maintenance, environmentally-friendly option for their outdoor space. However, like any other outdoor feature, it requires some care and attention to ensure longevity. Here are some detailed tips for maintaining artificial grass:

1. Regular cleaning and maintenance: 

It is crucial to clean your artificial grass regularly to keep it looking fresh and new. Remove debris, leaves, or twigs from the surface using a rake or a leaf blower. You can also use a hose to wash off any dirt or dust on the surface. If you have pets, pick up any solid waste and hose down the area with water to prevent odors.

2. Preventing damage to artificial grass: 

Artificial grass is designed to withstand harsh weather conditions but is still vulnerable to damage if not taken care of properly. To prevent damage, avoid placing heavy objects on the surface, such as furniture or plant pots.

Also, do not park heavy vehicles on the grass, as this can cause permanent damage to the fibers. Lastly, avoid using sharp tools like knives or scissors on the surface, which can cause cuts or tears.

3. Tips for enhancing the durability of artificial grass: 

You can take some extra measures to improve the lifespan of your artificial grass. For instance, avoid smoking or lighting fires on the grass, which can cause burn marks.

Also, avoid using any chemicals or pesticides on the surface, as this can cause discoloration or damage to the fibers. Lastly, ensure that the infill layer is installed correctly, which can help stabilize the fibers and prevent matting.

Following these tips, you can maintain your artificial grass in top condition for years.


This has been helpful for you. Artificial grass is a suitable solution for uneven concrete surfaces, providing a soft green surface for various activities.

To ensure it looks and feels great and to avoid any tripping hazards or unevenness, it is crucial to install the artificial grass correctly.

A leveling compound and a weed barrier should be used to prepare the concrete surface carefully before laying the artificial grass. It is also essential to select the appropriate type of artificial grass for the specific application and climate, as it can make a big difference in the durability and appearance of the final result.

With proper installation and maintenance, artificial grass on uneven concrete can be a long-lasting and enjoyable addition to any outdoor space.