How to Construct a Shower Enclosure

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Building a shower enclosure is a relatively straightforward process that can be done with a few basic tools and materials. Here are the steps to follow:

1. Measure the space: Determine the dimensions of the shower enclosure, taking into account the size of the shower base and any walls or doors that need to be installed.

2. Choose the materials: Select the appropriate materials for the walls, such as tiles or waterproof panels, and the shower base, such as acrylic or stone.

3. Prepare the area: Clear the space and ensure that the floor is level and the walls are clean and dry.

4. Install the shower base: Follow the manufacturer’s instructions to install the shower base, ensuring that it is level and securely in place.

5. Build the walls: Install the chosen materials for the walls, making sure they are waterproof and properly sealed.

6. Install the doors: If using doors, follow the instructions to install them securely.

7. Finish the enclosure: Add any finishing touches, such as grouting tiles or applying a waterproof sealant.

By following these steps, you can successfully build a shower enclosure to suit your needs and preferences.


Constructing a shower enclosure offers certain advantages compared to a standard tub/shower combination, primarily in terms of space efficiency, as it allows for the utilization of bathroom square footage for other purposes. There are various prefabricated materials available that make building a shower enclosure a relatively simple project for homeowners with some experience.

Preparing the Shower Enclosure

The initial step is to prepare the space for the shower enclosure. If replacing an old bathtub or shower, it is necessary to remove everything, starting with the wall studs and subfloor. Measure the space for the new shower enclosure and ensure adequate support is in place.

If support is lacking, install 2 x 4 studs as needed to create a supportive floor and framing for the walls. It is important to mark the location where the plumbing will be placed in order to avoid drilling holes near existing pipes that may damage the plumbing system.

Home Depot advises the use of a level to confirm that the subfloor is completely level. If it is not, issues with drainage for the shower may arise. It is also advisable to prepare safety equipment ahead of time and wear eye protection during construction tasks.

Installing the Shower Liner

Next, Home Depot recommends dry fitting the shower liner to ensure it fits the desired space. Place the chosen plastic liner or base and mark its position. Follow the instructions for the selected base to install it. In some cases, this may involve stapling the liner to the back wall to keep it in place.

Other models come with wall panels that are locked into the base before being secured to the walls. There are numerous convenient prefabricated options available at local hardware stores.

Plumbing Installation for Showers

Mark and drill holes for the plumbing. It is important to use the appropriate type of drill based on the material of the liner and wall panels. Install the drain assembly in its designated position.

Depending on the model, it may be necessary to caulk and seal the drain assembly at this point; refer to the design instructions for confirmation.

Concrete for the Base

If pouring concrete for the shower base, ensure that the material around the drain assembly allows for proper drainage, and create a quarter inch of slope per foot of space to ensure adequate drainage in the base. Some models come pre-sloped and may only require a few mounds of bricklayer’s mortar underneath the shower base to support the edges and maintain levelness.

Once again, it is important to consult the manufacturer’s instructions to ensure proper installation of the shower base. If using a pre-made shower base model, attach it to the studs using roofing nails.

Installing the Remaining Walls

Once the base is in place, insert and attach the remaining panels or walls. Again, certain prefabricated models have panels that fit into the base and can be easily attached to the framing. Follow the provided directions for attachment and secure everything in place. Finally, caulk and seal all connections. It is crucial to align the openings for the plumbing, faucets, and drain correctly.

Installation of Backer Board and Finalizing the Project

When starting from the beginning, trim the backer board to the appropriate dimensions and secure it to the framework. It is important to allocate sufficient space for the necessary plumbing. After all the necessary preparations are made, begin laying the tiles, starting from the floor. In this particular case, the waterproofing of the shower enclosure relies on the tiles and sealant.

Once the shower enclosure has been fully constructed and everything has dried, proceed to attach the desired fixtures and, if included in the design, a shower door.

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