How To Install a Tub Grab Bar

A grab bar is a simple addition to your tub that makes it easier for people of all ages and abilities to enter and exit safely. It’s also a pretty easy do-it-yourself (DIY) project that can be completed in a couple hours. In the video above, This Old House general contractor Tom Silva demonstrates how to securely and effectively install a tub grab bar.

Choosing the Right Tub Grab Bar

Before starting the installation, choose the right grab bar for your bathroom. Consider the following factors when making your choice:

Material and Finish

Tub grab bars are available in a variety of materials and finishes, including:

• Brushed nickel: Has a matte, textured look for a sophisticated touch. It’s also resistant to corrosion and tarnishing and relatively low-maintenance, as it’s less prone to fingerprints and water spots.
• Chrome: Has a shiny, polished appearance perfect for modern bathrooms. However, it requires regular cleaning to prevent fingerprints, water spots, and corrosion.
• Powder-coated aluminum: Comes in various colors and finishes to fit your bathroom, including a matte or semi-gloss finish depending on the coating. It’s lightweight and rust-resistant but less durable than stainless steel. It’s easy to clean but can be difficult to repair if it gets scratched.
• Stainless steel: This sleek, modern material provides maximum durability and corrosion resistance with relatively low maintenance needs.

Choose a material that complements your bathroom decor and offers durability and rust resistance. You might also consider options that are easy to clean, as they’ll be exposed to moisture regularly.

Length and Style

Grab bars come in different lengths and styles to suit various needs:

• Angled bars: Offer a more ergonomic grip for entering and exiting the tub
• L-shaped bars: Provide support in two directions, ideal for corner installations
• Straight bars: The most common type, available in lengths from 12–36 inches

Select a length and style that best fits your bathroom layout and user requirements. If you have limited space, a shorter, straight bar might be best. For larger areas, a longer or L-shaped bar could offer better support.

Weight Capacity

Make sure the grab bar you choose can support the weight of those who will be using it. Most quality grab bars are rated to support at least 250 pounds, with some capable of holding up to 500 pounds or more. If you’re unsure, check the packaging specifications or research the manufacturer.

Preparing for Tub Grab Bar Installation

Good preparation is key to a successful and safe grab bar installation. Follow these steps before beginning your installation.

Gather Tools and Materials

You’ll need the following tools and materials:

• Carbide-tipped hole saw (1 1/4-inch)
• Carbide-tipped masonry bit (3/16-inch)
• Drill/driver
• Level (4-foot)
• Pencil
• Phillips screwdriver
• Safety glasses
• Tape measure
• Tub grab bar kit (including mounting hardware)
• Work gloves

Make sure your drill is fully charged if it’s cordless, or have an extension cord ready if it’s corded.

Determine Placement

Think about the following factors when picking a location for your grab bar:

• Consider the user’s height and reach when determining the exact position.
• Make sure the grab bar will be easily accessible when entering and exiting the tub.
• Measure 33–36 inches above the floor of the tub for best placement.

Take into account the general use of the bathroom. For instance, if multiple household members with varying heights use the tub, you should discuss the placement that’s best for everyone. You could also add more than one grab bar for extra safety.

Check for Studs

While not always necessary, mounting the grab bar to wall studs guarantees the most secure installation:

• If studs are not available, prepare to use high-quality hollow-wall anchors, as demonstrated in the video.
• Use a stud finder to locate studs behind the tub.
• Mark stud locations if found.

Installing the Tub Grab Bar

With preparation complete, you’re ready to install your tub grab bar. Follow these steps carefully:

Mark and Drill Mounting Holes

1. Hold the grab bar in the desired location and use a level to check that it’s straight.
2. Mark the mounting hole locations with a pencil.
3. Using a 3/16-inch carbide-tipped masonry bit, drill pilot holes through the wall at the marked locations.
4. If using hollow-wall anchors, enlarge the holes with a 1 1/4-inch carbide-tipped hole saw and place them in, turning the center screw counterclockwise to release the wall-grabbing fingers.

Be precise with your measurements and markings. Drilling the pilot holes accurately is crucial for alignment.

Mount the Grab Bar

1. Insert the mounting screws through the grab bar and into the anchors or wall.
2. Position the grab bar over the installed anchors or pilot holes.
3. Tighten the screws securely using a Phillips screwdriver.
4. Slide the decorative escutcheons into place to cover the mounting screws and provide a finished look.

Double-check each screw to be sure they’re tightened correctly. Loose screws can lead to instability and potential accidents. 

Tub Grab Bar Testing and Maintenance

After installation, test the grab bar to make sure it’s safe and usable. It’s better to find and fix these problems now than to wait until the grab bar is needed for support.

Test for Stability

• Apply your full body weight to the bar, simulating how it will be used.
• Gently pull on the grab bar in various directions to make sure it’s securely fastened.
• Listen for any creaking or movement that might indicate a loose installation.

Regular Maintenance

Regular maintenance will keep the grab bar in good condition and continue to provide the necessary support. Neglecting maintenance can lead to deterioration and create safety hazards. Here are some guidelines:

• Check for any signs of corrosion or wear, especially at mounting points.
• Clean the grab bar regularly with mild soap and water.
• Periodically test the stability of the grab bar and tighten any loose screws.

Safety Considerations

While installing a tub grab bar improves bathroom safety, it’s important to keep these additional safety tips in mind:

• Consider installing multiple grab bars for comprehensive support around the tub area.
• Educate all household members on the right use of the grab bar.
• Use nonslip mats inside and outside the tub to provide additional traction.
• If you’re unsure about your ability to install the grab bar securely, hire a professional.

Our Conclusion

Installing a tub grab bar is a straightforward home improvement project that improves bathroom safety for users of all ages. By following these steps, you can successfully install a secure and functional grab bar in your bathtub area.

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