The Big4One Walk-In Tub

from Warner Bathrooms

For years, big and tall adults have struggled with one consistent problem: standard bathtubs simply aren’t built for larger, taller, or broader bathers. Even many walk-in tubs, while deep, lack the legroom, hamstring support, and seat length needed for true comfort. That’s why Warner Bathrooms is proud to offer one of the most innovative solutions available today — the Big4One Walk-In Tub, a spacious, oversized model designed specifically for big & tall comfort.

The Big4One comes from the same creators who introduced the Big4Two, the industry’s largest two-seat walk-in tub. The Big4One brings that same engineering to a single-seat tub but with a key difference: this model is built for bathers up to 7 feet tall. Its extra-long seat and extended interior give users the space to relax, stretch out, and truly enjoy a bath without the cramped experience typical tubs create.

Why the Big4One Is Different

The heart of the Big4One is its 24-inch extended seat, designed to offer genuine hamstring and back support. For tall adults, uncomfortable seating is often the biggest barrier to enjoying hydrotherapy or a relaxing soak. The Big4One solves this by giving users a long, supportive surface that allows them to recline naturally rather than bending awkwardly at the knees.

The oversized interior allows bathers to stretch their legs fully — something that’s nearly impossible in most walk-in tubs. Whether you’re tall, broad-shouldered, larger-framed, or simply someone who wants more room, the Big4One provides a level of space that finally feels right.

This is why one customer, James, a 6’5” former football player, said:
“I’ve never fit comfortably in any tub — this one finally changed everything.”

Outward-Swing Door & Dual Drain Technology

Beyond size, the Big4One also delivers important safety and convenience features. The outward-swing door makes entry and exit easier, especially for people with limited mobility. It opens wide enough to eliminate the struggle of stepping around a door panel, which is a major benefit for seniors prioritizing stability.

The tub also includes Dual Drain Technology, which drains water significantly faster than standard tubs. This reduces wait time, prevents chilling, and ensures a safer exit. For seniors or those who rely on assisted devices, this drainage system is a standout upgrade.

Is the Big4One the Right Fit?

Before purchasing any walk-in tub, seat length is critical — especially for tall users. To make sure the Big4One fits you comfortably, sit upright in a chair and measure the distance from your back to the back of your knee. The Big4One’s seat length is 21 inches. If your measurement is 21 inches or more, this tub is designed for your body type.

If you need help measuring or determining fit, Warner Bathrooms is happy to walk you through it or come to your home for a free safety assessment.

Proudly Serving Rockford, Chicago & Madison

Warner Bathrooms installs the Big4One and all other walk-in safety tubs across:

• Rockford, IL

• Chicago, IL & Western Suburbs

• Madison, WI

• Nearby surrounding areas

Our mission is simple: Safety, Comfort & Independence at Home.

We help seniors, caregivers, and homeowners find the right solution for aging in place, reducing fall risks, and creating comfortable bathing environments tailored to each home.

Contact Warner Bathrooms

If you’d like help choosing the right walk-in tub or want to see if the Big4One is the perfect fit for your home, call or text:

Text 815-624-3906

Call 816-877-7663

Warner Bathrooms — Safety, Comfort & Independence.