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Ella ShaK 36x72: The Largest Single-Seat Walk-In Tub

Updated September 2026

▶Glossary8
  1. Who It Is for
  2. Dimensions
  3. Therapies and Electrical
  4. Soaker, Wall Finish, and Water
  5. The ShaK on Video
  6. Related Guides
  7. Related Videos
  8. Common Questions

The Ella ShaK 36x72 is the largest single-seat walk-in tub we make, designed for athletes, bariatric bathers, and people about 6 ft 4 and taller. The spec sheet lists an actual size of 36 inches wide by 72 inches long by 39 inches high, a 28 inch seat, and 145 gallons unoccupied (80 to 120 occupied). It ships with the digital-controller Air + dual Hydro package and is the frame that can carry all four therapies.

7 foot tall man smiling with arms outstretched bathing comfortably in the Ella ShaK 36x72 walk-in tub
The ShaK was built around the tallest bathers.

Who It Is for

The videos show bathers of 6 ft 10, 6 ft 7, and 6 ft 4 at 390 lb using the ShaK comfortably. Our team positions it for bathers around 6 ft 4 and taller. Shorter bathers can use it, they simply have extra room, but most are better matched to the Big4One 33x66 or a 60 inch tub. Confirm your home can take the crate (39 x 74 x 49 in, 429 lb) and the 286 lb tub; our team asks for a doorway of at least 36 inches. See weight limits and bariatric options for the wider comparison.

Dimensions

  • Actual 36 x 72 x 39 in; seat 28 in (spec) to 29 in (video), 27.5 in long; 62 in interior length.
  • White composite and tempered glass U-door, 3-latch lock, outward swing; step-in about 5 in per our team.
  • No extension panel; reversible end panel and wall grab bar included. Extra end panels can be added; the long back side sits against a wall.

Therapies and Electrical

Ships with the digital-controller Air + dual Hydro package; microbubble is optional. The launch announcement counts 37 jets including 3 bidet jets on two hydro motors.

  • Hydro seat: 15 upper seat jets, 9A 900W pump, digital control.
  • Hydro foot and calf: 4 foot and 2 calf jets, separate 7A 900W pump, in-line heater 6A 650W, ozone.
  • Air: 12 seat and 4 foot jets, 4.5A 500W pump with Auto Purge, digital control.
  • LED 0.5A; optional heated seat. Dedicated GFCI lines at 115V 60Hz; the full package with microbubbles needs three 20A lines. See electrical requirements by model.

Also standard: 5-piece fast-fill faucet, dual 2 in 4-port drains, textured floor, and a front apron with two access panels. The digital controller is described in push controls vs digital touchpad.

Overhead view of the Ella ShaK 36x72 walk-in tub with outward swing door, hydro and air jets, grab bars, and contoured seat
Overhead view of the ShaK: 62 inches of interior length and a 28 inch seat.

Soaker, Wall Finish, and Water

The ShaK is not available without jets. It has no built-in tile flange, so discuss the glue-on flange approach with support before planning a tiled-in alcove; see tile flange and wall finishing. At 145 gallons unoccupied it is one of the tubs that may need a dedicated or larger water heater; our hot water heater requirements article explains the options. Athletes sometimes use it as a jetted ice bath.

The ShaK on Video

The ShaK: Largest and Most Luxurious Walk-In Tub
Chapters in this video
  1. 0:00 Introducing The ShaK Walk-In Tub A tall customer demonstrates how easily he fits into the spacious Ella's Bubbles ShaK walk-in tub.
  2. 0:37 ShaK Soaking Depth Factors The video explains the three key factors that determine the overall soaking depth of an Ella's Bubbles walk-in tub.
  3. 1:12 More ShaK Customer Testimonials Two more customers, one tall and one large, comfortably fit into the ShaK walk-in tub and enjoy its features.

The video states the 29 inch seat width, 27.5 inch seat length, and 62 inch interior, explains the three soaking-depth factors, shows three tall bathers, and reminds you to confirm that the home can accommodate the size. Watch: The ShaK: Largest & Most Luxurious Walk-In Tub: Customer Testimonial with chapters and a full transcript.

The ShaK: The World's Largest and Deepest Walk-In Tub
Chapters in this video
  1. 0:00 The World's Largest Tub A tall customer demonstrates the spacious interior of the Ella's Bubbles Shak walk-in tub.
  2. 0:23 Easy Entry And Exit A customer steps into the tub, highlighting the low threshold for easy access.
  3. 0:38 Independent Foot Massage Feature A customer enjoys the independent foot massage feature while comfortably seated in the tub.
  4. 0:57 The Ella Shak Walk-In Tub The video concludes by reiterating that the Ella Shak is the world's largest single-seat walk-in tub.

Three tall bathers demonstrate entry, the independent foot massage, and a full-body soak. Watch: The ShaK: The World's Largest & Deepest Walk-In Tub with chapters and a full transcript.

The ShaK: Customer testimonial

A 6 ft 10 customer demonstrates how the ShaK fits a very tall bather. Watch: The ShaK: The World's Largest & Deepest Walk-In Tub with a full transcript.

Video

Watch: The ShaK: The World's Largest & Deepest Walk-In Tub on its own page.

Common Questions

What is the ShaK step-in height?
The step-in height for the Ella ShaK walk-in tub is about 5 inches, as measured by our team. This low threshold allows for easy entry and exit. You can compare the step-in threshold heights of all Ella's Bubbles models to find the best fit for your needs.
Can the ShaK carry all four therapies?
Yes, the Ella ShaK walk-in tub frame is designed to carry all four available therapies: hydrotherapy, independent foot massage, air therapy, and microbubble therapy. The ShaK ships standard with the digital-controller Air + dual Hydro package. If you opt for the full package including microbubbles, it will require three dedicated 20A GFCI lines at 115V 60Hz for proper operation.
Will a very tall bather fit in the ShaK?
Yes, a very tall bather will fit comfortably in the Ella ShaK walk-in tub. The interior length of the tub is 62 inches, and the seat is 28 inches wide and 27.5 inches long. A customer who is 6 ft 10 demonstrates how easily he fits into the spacious ShaK in our customer testimonial video.
I am 6 ft 2. Is the ShaK too big for me?
No, if you are 6 ft 2, the Ella ShaK walk-in tub is not too big for you; you will simply have extra room. While most bathers under about 6 ft 4 are often better matched to the Ella Big4One 33x66 or a 60-inch tub, the ShaK provides the deepest soak if you have the space and prefer the extra room.
How wide a doorway does the ShaK need?
Our team recommends a doorway of at least 36 inches wide for the Ella ShaK walk-in tub. The shipping crate measures 39 inches wide by 74 inches long by 49 inches high and weighs 429 lb, so you should plan to uncrate the tub outside. The 286 lb tub can then be moved by its frame with the access panels removed.
Does the ShaK have finished ends?
The Ella ShaK walk-in tub includes one reversible end panel as a standard feature. The long back side of the tub is designed to sit against a wall and does not have a panel. If the other end of the tub will be exposed and not against a wall, you will need to order an extra end panel.
Can I order the ShaK without a faucet?
Yes, you can order the Ella ShaK walk-in tub without a faucet. If you choose to use your own faucet, you or your installer will be responsible for drilling the necessary deck holes for its installation. The ShaK comes standard with a 5-piece fast-fill faucet if you do not opt out.
Is the ShaK available as a soaker?
No, the Ella ShaK walk-in tub is not available as a soaker model without jets. The ShaK always ships with the digital-controller Air + dual Hydro package as a standard feature. It is designed to provide a full therapeutic bathing experience.
Is the ShaK built left and right?
Yes, the Ella ShaK walk-in tub is available in both left and right drain configurations. This allows you to choose the orientation that best suits your bathroom layout and plumbing setup.

For anything model-specific, open a ticket at ellasbubbles.com/support or call (800) 480-6850.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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