September 29, 2023

Can you Put Grab Bars in a Fiberglass Shower?

Yes, you can put grab bars in a fiberglass shower. However, it is important to use a mounting hardware system that is specifically designed for fiberglass, as traditional wall mounts may not be strong enough to support the weight of a person.

Why is it crucial to use a fiberglass-specific mounting hardware system?

Fiberglass challenges:

Traditional grab bar installations rely on anchoring screws drilled into wall studs for maximum support. Fiberglass shower walls typically have a hollow space between the fiberglass panel and the wall studs behind it. Regular screws may not provide sufficient support in this situation, and could cause the grab bar to come loose if someone leans on it for support.

Special hardware:

To securely mount grab bars in a fiberglass shower, you’ll need to use a special mounting system designed specifically for fiberglass installations. These systems typically consist of a backing plate that spreads the load over a larger area and uses longer screws that reach the wall studs behind the fiberglass. Here are two common options:

• Solid Mount Shower Grab Bar Backer and Mounting Kit: This kit uses a patented mounting plate that gets installed through the front of the fiberglass panel, then anchors to the wall stud behind it.
• Toggle bolts: These bolts expand behind the fiberglass wall as you tighten them, creating a secure anchor for the grab bar. However, the effectiveness of toggle bolts depends on the thickness and condition of the fiberglass panel behind the wall.

What tools do I need to mount grab bars in a fiberglass shower?

1. Power Drill: A power drill with a drill bit size mandated by the toggle bolt manufacturer.
2. Solid Mount Anchoring Device Kit: This is a specific anchoring system designed for grab bar installation in fiberglass showers. It features a backing plate that spreads the load over a larger area behind the fiberglass, and uses long screws to reach and secure into the wall studs behind the panel. This offers a very secure and reliable mounting solution.
3. 2″ Drill Bit: This is the correct size you will need when using a solid mount anchoring kit to mount grab bars in a fiberglass shower.
4. Stud Finder: To locate the wall studs behind the fiberglass for secure mounting placement and to ensure the mounting hardware can reach the studs.
5. Screwdriver: To tighten the screws that hold the grab bar to the toggle bolts.
6. Silicone Sealant: This creates a waterproof barrier around the edges of the grab bar base, preventing water from seeping behind it. This helps protect the wall material (including fiberglass) from moisture damage and potential mold growth.
7. Level: To ensure the grab bar is mounted horizontally.
8. Painters Tape: To help protect the fiberglass surface around the drilling areas.

How do I properly mount grab bars onto a fiberglass shower wall?

The best way to install grab bars in a fiberglass shower is to use a mounting system that anchors into the wall studs behind the fiberglass. This will ensure that the grab bars are securely installed and can support the weight of a person.

• Locate the wall studs: A stud finder can help you locate the wall studs behind the fiberglass panel. This will help you determine the best placement for the grab bars and ensure the mounting hardware can reach the studs for a secure installation.
• Follow the manufacturer’s instructions: Different grab bar and mounting systems may have specific installation requirements. Be sure to follow the instructions provided by the manufacturer of the grab bar system you choose.
• Consider professional help: If you are uncomfortable with DIY projects or unsure about your ability to install the grab bars securely, consider consulting with a professional contractor or handyman experienced in bathroom modifications.

We’ve put together this comprehensive installation guide to walk you through installing grab bars in a fiberglass shower: Grab Bar Installation (Fiberglass Showers/Tubs)

  

It’s important to note: fiberglass walls have no structural or stable support. Not only will the fiberglass shower walls flex when pushed against, but they also can crack and break over time from continual pushing or pulling. Fiberglass showers also have air space between the fiberglass surrounds and the wall studs and are not similar to standard layered walls. Installing grab bars on fiberglass surrounds can be very difficult due to the challenges in mounting the fasteners through the air space behind the fiberglass surround directly into a wood wall stud.

If you’re not comfortable with the installation process or have any doubts, consider hiring a professional who specializes in grab bar installations. GrabBars.com has a huge network of over 500 independent professional grab bar installers all across the United States. We make it extremely easy for you to find a local installer – just fill out this Grab Bar Installation Request Form and within a few hours our installer will get in touch with you!

If you are in need of shower grab bars, take a look at our wide variety here: Grab Bars

If you are also in need of any anchoring devices, take a look at those here: Anchoring Devices

If you have any additional questions about shower safety grab bars or their installation process in a fiberglass shower, email us at [email protected], live chat with us on GrabBars.com, or give us a call at 704-800-4629 and we’ll be happy to help.