What is the height of an ADA compliant bathtub?

Hi there! Lillie here, your friendly bath remodeling advisor. I‘ve been installing and upgrading bathrooms for over 20 years, so I know a thing or two about making tubs accessible and ADA compliant.

Choosing and installing a bathtub to meet ADA requirements can seem complicated, but I‘m here to make it easy. In this guide, I‘ll walk you step-by-step through everything you need to know about ADA bathtub dimensions, heights, accessories, and more.

My goal is to equip you with expert insights and data so you can create a safe, comfortable, accessible bathing area for yourself or a loved one. I‘ll share my proven insider tips to help you avoid common pitfalls and mistakes too.

So let‘s get started! Here‘s what we‘ll cover:

ADA Bathtub Height Rules and Regulations

The ADA (Americans with Disabilities Act) sets legal requirements for bathtub rim height to provide accessibility. ADA guidelines state that accessible bathtubs must have:

• A rim height between 17 and 19 inches above the bathroom floor. This allows users to transfer and enter the bathtub more easily.

• A built-in seat at this 17-19 inch rim height that extends the full width of the tub.

These requirements are based on extensive ergonomic research and testing. The 17 to 19 inch range works well for both taller and shorter individuals to sit, swing their legs over, and transfer into the tub safely.

For context, the average rim height of a standard bathtub is 14 to 15 inches. But as an occupational therapist I‘ve worked with, those few extra inches make a huge difference in accessibility!

Now you may be wondering…how exactly do I measure the rim height to get it right?

It‘s simple! Just take a tape measure and run it vertically from the top of the tub rim down to the floor. This will give you the rim height in inches. Adjust and test your tub until you hit that magic ADA range of 17 to 19 inches.

Getting the rim height right is critical, so always double check this key measurement. A tub that‘s too low or too high can make bathing dangerous.

Minimum Bathtub Width and Length

In addition to rim height, the ADA standards also outline minimum interior tub dimensions:

• Width – The tub must be at least 30 inches wide inside from one side to the other. This gives adequate room to sit and move around.

• Length – The tub should be a minimum of 60 inches long from the back wall to the front. This provides space to stretch out the legs and recline.

Ideally, aim for even larger dimensions if you have the space. Extra room makes bathing easier and more comfortable.

Here are the average interior dimensions of some common tub types:

Tub Type	Width	Length
Standard Bathtub	21-24 inches	52-60 inches
Walk-in Bathtub	26-40 inches	55-60 inches
ADA Compliant Tub	At least 30 inches	At least 60 inches

As you can see, regular tubs run smaller than the ADA requirements. So when shopping, look specifically for ADA or accessible bathtubs that meet the larger minimum dimensions. This ensures you get a tub that‘s truly compliant and usable!

Floor Clearance and Access

Now, a properly sized bathtub alone isn‘t enough for ADA compliance. There also needs to be sufficient clear floor space around the tub for maneuvering and transfers.

The ADA standards say there should be:

• A minimum of 30 inches of open floor space extending the full length of the bathtub. This gives adequate room for a wheelchair or walker user to approach the tub.

• At least 12 inches of clearance beyond the edge of the tub. This provides the necessary space to maneuver and transfer over into the tub.

• No obstructions like a swinging door or fixtures blocking the access route.

As a general rule of thumb, I recommend at least a 5 foot by 3 foot clear floor space in front of the tub if possible. This really optimizes room to move and access the tub safely.

Pro Tip: Installing grab bars, non-slip tub appliques, lever faucet handles and an adjustable hand shower also boosts accessibility. We‘ll get into more on that next!

Grab Bars, Fixtures and Accessories

The right accessories can make all the difference in bathing comfort and safety. Here are some of the most essential ADA bathtub features I recommend:

Grab Bars:

• Install grab bars on the wall at the head and foot of the tub. Position them 33-36 inches above the tub floor.

• High quality grab bars should be made of slip-resistant materials like stainless steel.

• Properly installed and secured grab bars provide critical stability when entering and exiting the tub.

Fixtures:

• Use lever, push button or touch faucet handles rather than traditional turn knob handles. Lever handles can be easily operated with a closed fist.

• Make sure the tub drain and any controls are within reach from a seated position.

• Consider investing in an automatic water tempering valve to prevent accidental scalding.

Accessories:

• Add non-slip adhesive tub appliques or strips for added traction in the tub.

• Install an adjustable hand-held shower head for targeted cleaning while seated.

• A bath bench, tub transfer seat or wall-mounted fold down seat provide safe resting spots.

Taking the time to properly install grab bars and select the right accessories improves ADA compliance tremendously.

Common ADA Tub Mistakes to Avoid

Meeting all the ADA‘s guidelines for an accessible bathtub may seem complicated…and it‘s true, there are a lot of factors at play!

To help, here are 5 common mistakes I see people make most often when installing or modifying a bathtub:

Mistake #1 – Rim height over 19 inches. It‘s too high and unsafe for many users to step over.

Mistake #2 – Grab bars missing or incorrectly positioned. They provide vital stability and support. Don‘t forget them!

Mistake #3 – Non-stick tub appliques not installed or only temporary. Permanent traction aids are a must.

Mistake #4 – Clutter or obstructions in access route and floor space. Can make transfers difficult.

Mistake #5 – Hard-to-reach or hard-to-grasp faucet handles. Opt for accessible lever style handles.

Avoiding these common pitfalls will go a long way towards creating an ADA compliant and senior-friendly bathtub.

ADA Shower Guidelines

What if a shower fits your bathroom better than a tub? Not a problem! The ADA provides accessibility guidelines for showers too.

Key ADA compliant shower requirements include:

• Minimum interior size of 36" x 36" – gives adequate room to turn and move in a wheelchair.

• Limited threshold/lip maxing it easier to roll or step into the shower.

• Grab bars installed for support and stability.

• Shower seat providing a safe resting spot if needed.

• Adjustable or handheld shower heads enabling use from seated position.

• Non-slip shower flooring to prevent falls.

So while getting a walk-in ADA bathtub may not be feasible, you can still achieve ADA compliance with a properly sized and equipped shower stall.

If you‘re remodeling, I‘d be happy to help select shower layouts, grab bars, seats, flooring and fixtures to maximize accessibility and safety.

Converting a Standard Tub

Do you have an existing standard tub you want to modify to be more accessible, rather than doing a full gut remodel?Several effective options exist:

• Install an external lift that lowers mobility impaired users into the existing tub.

• Attach grab bars and non-slip appliques to improve safety.

• Replace faucets with lever handles and add a hand-held shower head.

• Add a bath seat to make entry easier.

• Build up the rim height by adding a small barrier curb.

While a new ADA tub is ideal, these affordable conversions can still significantly improve accessibility and function. I can help assess your existing space and recommend the best conversion plan.

Choosing the Right ADA Bathtub

Ready to shop for a new ADA compliant tub? Here are the key features to look for:

• Rim height of 17-19 inches. This is the most critical ADA specification.

• Internal width over 30 inches. Wider tubs provide more room to maneuver.

• Low step-in threshold for easy entry access.

• Outward opening door if choosing a walk-in tub. Easier to enter and exit.

• Built in or installable grab bars. Critical for stability and support.

• Slip-resistant tub floor. Helps prevent falls.

• Ergonomic seat at rim level. Makes bathing more comfortable.

I recommend focusing your search specifically on bathtubs marketed as "ADA Compliant" or "Handicap Accessible." This ensures it meets all the important requirements.

Acrylic and fiberglass ADA tubs provide a nice balance of accessibility, functionality and affordability. Schedule a showroom visit together if you‘d like help selecting options.

Financial Assistance for ADA Tubs

Now, let‘s chat about one of the biggest concerns I hear – cost. ADA tubs with all the necessary accessories don‘t come cheap. Prices often range from $2,000 to $5,000++.

But don‘t worry – you have options to defray some of the investment through tax credits and rebates.

Here are some ways I can help you reduce the financial impact:

• Federal Tax Credit – Get up to $50,000 back for home improvements for accessibility.

• State Tax Deduction – Some states offer deductions for accessibility remodels.

• Disability Grants – Nonprofits provide grants and funding for accessibility projects.

• Insurance Reimbursement – Talk to your provider about potential reimbursement.

• Payment Plans – Many tub manufacturers offer 12, 24 or even 36 month financing.

My team partners with financial and legal experts to identify all programs and incentives you may qualify for. Helping you afford an ADA tub is just as important as designing it!

Professional Installation

Once you‘ve selected the ideal tub, proper installation is critical. I strongly advise having a contractor experienced with ADA bathrooms handle this rather than tackling it solo.

Here‘s an overview of the installation process:

• Careful site measurements and planning using the ADA dimensions.

• Securing the tub safely and leveling it at the proper rim height.

• Confirming there is adequate access clearance around the tub.

• Installing and testing the operation of the grab bars, fixtures and accessories.

• Inspection to guarantee ADA compliance. Tweaks can be made if needed.

Doing installation right the first time guarantees you an accessible, functional tub that meets codes and lasts for years to come. No shortcuts!

Maintaining Your ADA Tub

Once your new bathtub is installed, you‘ll want to be diligent with regular maintenance and upkeep:

• Test the grab bars frequently to ensure they remain securely attached. Loose bars present a falling hazard.

• Re-apply non-slip strips if they show signs of wear. Slippery tub floors are dangerous.

• Check and adjust the water temperature. Getting scalded is a risk.

• Inspect that the rim height and access clearances haven‘t changed from shifting or settling.

• Clear clutter that could obstruct floor access. Keep the route open.

Staying on top of these maintenance tips ensures your ADA tub keeps providing safe, barrier-free use for many years.

Well, there you have it – everything you need to know about choosing, measuring and installing an ADA compliant bathtub plus tips to keep it accessible for the long run.

I know that was a lot of information! But designing and building an accessible bathroom is a complex process with lots of moving parts.

My goal with this guide is to arm you with insider tips and data to eliminate guesswork and make the project smoother.

And remember, I‘m here as a resource if you need any help along the way. I offer professional full service ADA bathroom remodels, but am also happy to simply provide guidance for DIYers.

Wishing you all the best with your new bathtub and remodeling plans! Never hesitate to reach out with any other questions.

Your Friend,

Lillie Gabler
ADA Tub Expert