How To Install A Shower Base On Concrete Floor

Are you looking to install a new shower in your bathroom but don’t know where to start? Installing a shower base on a concrete floor might seem like a daunting task, but with the right tools and steps, it can be a straightforward process.

In this article, you’ll learn the essential steps to install a shower base on a concrete floor, from preparing the area to connecting the drain and plumbing.

Before you start, it’s important to gather all the necessary tools and materials, including a shower base, adhesive, plumbing supplies, and a measuring tape. You’ll also need to prepare the area by removing any old fixtures and cleaning the concrete floor thoroughly.

With these preparations in place, you’ll be ready to install your new shower base and enjoy a refreshing and relaxing shower in no time.

Preparing the Area for Installation

Before you begin, make sure the area is free of any debris or obstructions to ensure a smooth and successful installation. Sweep the area thoroughly and remove any loose particles. If there are any large obstructions, use a hammer and chisel to remove them.

The concrete floor must be level and even, so you may need to use a self-leveling compound to fill in any dips or uneven areas.

Once the area is prepared, you can begin to measure and mark the location of the shower base. Use a tape measure to determine the correct placement and make marks on the concrete floor with a pencil. Double-check your measurements to ensure that the shower base will fit properly. If necessary, use a level to ensure that the marks are even and straight.

After marking the location of the shower base, it’s time to prepare the area for installation. Apply a layer of mortar or adhesive to the concrete floor, making sure to cover the entire area where the shower base will be placed. Smooth out the mortar or adhesive with a trowel, ensuring that it is evenly distributed.

Place the shower base onto the mortar or adhesive and press down firmly to ensure a secure connection. Allow the mortar or adhesive to dry completely before moving onto the next step.

Choosing the Right Shower Base

You’ll want to make sure the shower foundation you select fits your bathroom’s design and provides the desired features for a relaxing shower experience.

There are several types of shower bases to choose from, including acrylic, fiberglass, and tile-ready bases.

Acrylic and fiberglass bases are easy to install and maintain, while tile-ready bases offer more customization options for your bathroom’s design.

It’s important to consider the size of your bathroom and the location of the drain when selecting a shower base.

Another factor to consider when choosing a shower base is its durability. Acrylic and fiberglass bases are resistant to scratches and stains, while tile-ready bases may require more maintenance to keep them looking their best.

You’ll also want to consider the weight of the base, as heavier options may require additional support during installation.

Ultimately, the right shower base for your bathroom will depend on your personal preferences and needs.

When selecting a shower base, it’s important to keep in mind the overall style and design of your bathroom. You’ll want to choose a base that complements your existing fixtures and decor.

Additionally, consider the ease of installation and maintenance for the base you select.

With the right shower base, you can create a relaxing and functional space for your daily routine.

Measuring and Cutting the Drain Hole

Measuring and cutting the drain hole is a crucial step in ensuring a proper fit for the plumbing and creating a smooth transition from the shower area to the rest of the bathroom. Before doing anything, you need to locate the center of the drain hole by measuring the distance between the two studs that are closest to the drain.

Once you’ve found the center, you can use a hole saw to cut the hole in the concrete floor. Make sure the saw is the right size for the drain and use a drill to start the hole.

When you have the hole cut, you need to test the fit of the drain. Place the base over the hole and check to see if the drain fits snugly. If it doesn’t, you may need to trim the hole a bit more until the drain fits properly. It’s important to get this right, as an ill-fitting drain can cause leaks and other issues down the line.

Remember that safety is important when cutting concrete, so wear protective gear like goggles and a dust mask. Make sure to clean up any dust or debris that’s left over from the cutting process.

With the drain hole cut and fitted properly, you’re one step closer to a beautiful new shower in your bathroom.

Applying Adhesive to the Concrete Floor

Now it’s time to secure your new oasis in place and feel the excitement of your dream shower becoming a reality by applying adhesive to the surface below. Before you begin, make sure that the concrete floor is clean and free of any debris or dust. This will ensure that the adhesive will properly adhere to the surface.

To apply the adhesive, start by pouring a small amount onto the center of the concrete floor where the shower base will be placed. Use a notched trowel to spread the adhesive evenly over the surface. Be sure to follow the manufacturer’s instructions for the recommended amount of adhesive and spreading technique.

Once the adhesive has been applied, carefully lower the shower base onto the concrete floor. Use a level to ensure that the base is properly aligned and adjust as necessary. Allow the adhesive to dry completely before proceeding with the installation of the drain and walls.

Remember, a well-crafted shower base will provide a sturdy and long-lasting foundation for your shower, so take your time and ensure that the adhesive is applied correctly.

Setting the Shower Base in Place

Get ready to place your new oasis in its proper position by securely setting it in place with the adhesive you’ve just applied to the clean surface below. Before setting the shower base, make sure to check for level and adjust any necessary shims.

Once you have the base level, carefully lower it into place, making sure to press down firmly to ensure a good bond between the adhesive and the base. As you set the shower base in place, be sure to check that it is aligned properly with the drain.

Once you are satisfied with the placement, use a level to check that it’s still level. If it’s not, adjust the shims until it’s level again. Keep in mind that it’s crucial to have a level shower base, as an uneven base can lead to water pooling and other issues down the line.

Once you’re certain that the shower base is level and in the correct position, allow the adhesive to cure according to the manufacturer’s instructions. This usually takes at least 24 hours, so be sure to avoid using the shower during this time.

After the adhesive has cured, you can proceed with installing the rest of the shower components. With your new shower base securely in place, you can enjoy a refreshing and relaxing shower experience for years to come.

Leveling the Base for Proper Drainage

Ensure a water-tight seal and prevent future drainage issues by leveling your new oasis during installation. Follow these steps to ensure proper drainage and a level base:

  • Begin by placing a level on top of the shower base. Check both lengthwise and widthwise to ensure the base is level in all directions.
  • If the base isn’t level, use shims to adjust the height. Place the shims under the low side of the base until it’s level in all directions.

Once the base is level, use a waterproof sealant to seal the gap between the base and the concrete floor. This will prevent water from leaking through and causing damage to the subfloor.

Proper drainage is essential to avoid water buildup and potential mold growth. Take the time to level your shower base during installation to ensure that water flows properly to the drain. This step will prevent future drainage issues and give you peace of mind knowing your new oasis is installed correctly.

Connecting the Drain and Plumbing

Let’s tackle connecting the drain and plumbing so you can start enjoying your new shower oasis worry-free. The first step is to match the drain opening in your shower base with the existing drainpipe. Before installing the base, make sure to clean the drainpipe of any debris or leftover adhesive. Use a silicone-based sealant to secure the drain in place and tighten the screws until snug.

Next, connect the shower base to the existing plumbing. This involves installing the drainpipe and trap, which connects to the main sewer line. Position the trap under the drain and attach the pipes together using PVC glue. Make sure the pipes are level to prevent any leaks. Finally, connect the showerhead and faucet to the plumbing and test for any leaks.

Once the plumbing is connected, it’s important to check for proper drainage. Pour water onto the shower base and observe the flow of water. If the water doesn’t drain properly, you may need to adjust the height of the base or level the drain. It’s important to ensure proper drainage to prevent water damage and mold growth.

With the drain and plumbing properly installed, you can now enjoy your new shower with peace of mind.

Finishing Touches and Common Mistakes to Avoid

Now that you’ve connected the drain and plumbing, it’s time to focus on the finishing touches of installing your shower base on a concrete floor. These final steps are crucial to ensure that your shower functions properly and looks great.

Firstly, make sure to properly seal any gaps between the shower base and the walls. This will prevent water from leaking down into the floor and causing damage. Use a high-quality silicone sealant and apply it evenly along the edges of the shower base.

Next, double-check all connections and ensure that everything is tightened and secure. This will prevent any leaks from occurring and keep your shower functioning properly.

Lastly, don’t forget to install the shower drain cover and any additional fixtures, such as a showerhead or handle.

When installing a shower base on a concrete floor, it’s important to avoid some common mistakes. Make sure to properly level the shower base before installing it to prevent any water pooling. Additionally, be careful not to overtighten any connections, as this can cause damage to the plumbing.

By following these tips, you can successfully install a shower base on your concrete floor and enjoy a beautiful and functional shower for years to come.


Congratulations! You’ve successfully installed a shower base on a concrete floor. Not only have you saved money by doing it yourself, but you’ve also gained valuable knowledge and skills that can be applied to other DIY projects.

Remember to take your time and follow the steps carefully. Preparing the area, choosing the right shower base, measuring and cutting the drain hole, applying adhesive, setting the base, leveling it, connecting the drain and plumbing, and finishing touches are all important steps that should not be overlooked.

By avoiding common mistakes and taking the necessary precautions, you can ensure that your shower base will provide a sturdy and durable foundation for your bathroom.

Enjoy your new shower!

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