Our DIY Shower Wall Panel Installation Guide

DIY shower wall installation is a fantastic way to give your bathroom a fresh, modern look without the hassle and high costs of traditional tile work. Whether you’re a seasoned DIYer or just getting started, this guide will walk you through each step of the process, making it easy to tackle on your own.

We’ll cover everything you need to know, from choosing the right panels to the tools required and step-by-step installation instructions. We’ll also touch on how to ensure your shower stays waterproof and easy to maintain.

Let’s dive into the DIY shower wall panel installation process and help you create a stunning, functional bathroom!

Choosing the Right Shower Wall Panels

The first step in your installation project is selecting the right type of shower wall panels. Two of the most popular materials are acrylic and fiberglass, which offer durability, easy installation, and low maintenance.

Acrylic Panels: These panels are lightweight, easy to install, and come in various colors and finishes. They are also non-porous, making them resistant to mold and mildew. Acrylic panels are a great option if you want something sleek and modern with a smooth, glossy finish.
Fiberglass Panels: Fiberglass is another affordable and durable option. While fiberglass may not have the high-gloss finish of acrylic, it’s tough and resilient. Fiberglass panels are also more textured, offering a more traditional look that some homeowners prefer.

Once you’ve chosen your material, it’s time the gather your tools and supplies for your DIY shower wall panel installation.

Tools and Materials You’ll Need

Before starting your project, make sure you have all the necessary tools and materials on hand. Here’s what you’ll need:

Tools:

Measuring tape
Level
Notched trowel
Caulking gun
Utility knife or fine-tooth saw
Rubber mallet
Drill with a mixing paddle (for adhesive)
Tile spacers (optional)
Sandpaper (if needed for surface prep)

Materials:

Acrylic or fiberglass shower wall panels
Construction adhesive (specific to your panel type)
Waterproof sealant or silicone caulk
Backer board (if needed)
Waterproof tape
Painter’s tape (optional)

Once you have all your tools and materials, you can start preparing your shower space for a DIY shower wall panel installation.

Preparation: Setting the Stage for Installation

Proper preparation is key to ensuring a smooth and successful installation. Here are the steps to follow:

Step 1: Measure Your Shower Area

Measure the height and width of each shower wall where the panels will be installed. This will help you determine the size and number of panels you’ll need. Don’t forget to account for areas around fixtures like the shower head and faucet. If needed, order your panels slightly larger and cut them down to size during installation.

Step 2: Prepare the Surface

The surface behind your panels must be clean, smooth, and dry to ensure proper adhesion. If your existing shower walls are in good condition, you can install the panels directly over them. However, if you’re working with old tile or damaged walls, you may need to install a cement backer board to create a solid, moisture-resistant surface.

If the walls have bumps or uneven areas, sand them down. Then, using a mild soap or cleaner, clean the walls of dust, grease, or grime and allow them to dry completely.

Step 3: Dry-Fit the Panels

Before applying adhesive, it’s a good idea to dry-fit the panels. Place the panels in the shower without adhesive to ensure they fit correctly. If any adjustments are needed, now is the time to cut the panels to the right size using a utility knife or fine-tooth saw. Mark where your fixtures are and cut holes accordingly.

Once you’ve confirmed the panels fit perfectly, it’s time to move on to the installation process.

Installing the Shower Wall Panels

Now that your surface is prepped and your panels are dry-fitted, it’s time for the fun part: installing the panels.

Step 1: Apply Adhesive

Using a notched trowel, apply the construction adhesive to the back of the first panel. Be sure to choose an adhesive that is compatible with your panel material (acrylic or fiberglass). Spread the adhesive evenly across the entire surface, paying special attention to the edges and corners to ensure a secure fit.

Tip: Avoid applying too much adhesive in one go—it may dry before you’re ready to place the panel. Work in sections, especially if you’re installing multiple panels.

Step 2: Install the Panels

Once the adhesive is applied, carefully press the panel against the wall. Start with the bottom of the panel and work your way up, using firm pressure to make sure the panel adheres evenly. If needed, use a rubber mallet to gently tap the panel into place.

Use a level to check that the panel is straight. If you’re installing multiple panels, use tile spacers to maintain even gaps between the panels. This will help you achieve a clean, professional look.

Repeat the process for each panel, applying adhesive, positioning the panels, and checking alignment as you go.

Ready to transform your bathroom with ease? FlexStone’s high-quality, easy-to-install shower wall panels are perfect for any DIYer or professional. Visit our trusted retail partners today to find the perfect FlexStone products for your next renovation project.

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Sealing and Waterproofing

Sealing and waterproofing ensure your shower remains watertight after a DIY shower wall panel installation.

Step 1: Seal the Edges and Corners

After the panels are installed, it’s time to seal the edges where the panels meet the shower base, ceiling, and each other. Use a waterproof silicone caulk or sealant to create a watertight seal in these areas. Run a smooth bead of caulk along the seams and use your finger or a caulk tool to smooth it out. This step will prevent water from seeping behind the panels, which could lead to mold or water damage.

Step 2: Seal Around Fixtures

Remember to seal around plumbing fixtures, such as the shower head, faucet, and handles. Use painter’s tape to mask off the area around the fixture before applying caulk to ensure a clean, straight line. This will provide a tight seal and protect against water intrusion.

Step 3: Allow the Adhesive and Sealant to Cure

Once everything is in place, allow the adhesive and caulk to fully cure before using the shower. Check the manufacturer’s instructions for curing times, but generally, you should wait at least 24 to 48 hours before exposing the walls to moisture.

Maintenance and Care Tips for Shower Wall Panels

Now that your shower wall panels are installed, you’ll want to keep them looking great with minimal effort. Fortunately, both acrylic and fiberglass panels are low-maintenance and easy to clean. Here are a few tips to keep your shower walls in top shape:

Regular Cleaning: Wipe down the panels regularly with a mild soap or non-abrasive cleaner and a soft cloth or sponge. Avoid harsh chemicals or abrasive scrubbing pads, as they can scratch the surface.
Prevent Water Spots: After each shower, quickly wipe down the walls with a squeegee or microfiber cloth to prevent water spots and soap scum buildup.
Check for Leaks: Periodically inspect the caulked seams for any signs of cracking or peeling. If you notice any gaps, apply a fresh bead of silicone to keep the shower waterproof.
Mold and Mildew Prevention: While acrylic and fiberglass panels are resistant to mold and mildew, it’s still a good idea to keep the shower well-ventilated to prevent excess moisture buildup.

Tips for a Successful DIY Project

Take Your Time: Rushing through the installation can lead to mistakes. Take your time with each step, especially when it comes to measuring and applying adhesive.
Ask for Help: While this is a project you can do on your own, having an extra set of hands can be helpful when positioning large panels.
Double-Check Everything: Measure twice, cut once. This rule applies to every part of the process, from dry-fitting the panels to cutting around fixtures.

Transform Your Bathroom With FlexStone—The Perfect Solution for Every Installer

FlexStone’s shower wall materials offer the perfect blend of beauty, durability, and ease of installation, making them ideal for installers of all experience levels—from DIY enthusiasts to seasoned professionals. Our innovative FlexStyle panels mimic the look and texture of natural stone or tile but with a lightweight, non-porous design that’s far easier to work with.

Whether you’re tackling your first bathroom renovation or looking for a high-quality, low-maintenance solution for a client, FlexStone products are easy to cut, install, and seal, eliminating the need for specialized skills or tools. With options available at trusted retailers like Home Depot, Lowe’s, Menards, and Wayfair, FlexStone provides everything you need to transform your bathroom into a stunning, functional space.

Our DIY Shower Wall Panel Installation Guide

Our DIY Shower Wall Panel Installation Guide

Choosing the Right Shower Wall Panels

Tools and Materials You’ll Need

Tools:

Preparation: Setting the Stage for Installation

Step 1: Measure Your Shower Area

Step 2: Prepare the Surface

Step 3: Dry-Fit the Panels

Installing the Shower Wall Panels

Step 1: Apply Adhesive

Step 2: Install the Panels

Sealing and Waterproofing

Step 1: Seal the Edges and Corners

Step 2: Seal Around Fixtures

Step 3: Allow the Adhesive and Sealant to Cure

Maintenance and Care Tips for Shower Wall Panels

Tips for a Successful DIY Project

Transform Your Bathroom With FlexStone—The Perfect Solution for Every Installer

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