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What Is a Tub Cut and How Does It Compare to a Walk-In Tub?

Updated September 2026

A tub cut is a modification to an existing bathtub in which part of the tub's side wall is cut away to make a walk-through opening, sometimes with a door or gate fitted over the cut. Ella's Bubbles does not cut openings into existing tubs and sells no cut-in kit; it builds complete walk-in tubs whose door, seal, frame and threshold are engineered together, as explained in Can Ella Cut a Walk-Through Opening or Add a Door to My Existing Bathtub?. The comparison below shows what a purpose-built walk-in tub gives you that an opening in a standard tub does not.

What a Tub Cut Is, and What It Is Not

The term covers any alteration that turns a conventional tub into something you walk through instead of step over: cutting a walk-through opening in the tub wall, adding a door or gate to that opening, or making the same change to the tub side of a tub and shower combination. The tub itself stays where it is, so the rest of the fixture, including its faucet, drain and floor, is unchanged. What changes is only the wall you used to step over.

Ella's answer to any request for this kind of work is no. There is no Ella cut-in product, no conversion kit and no customization service, and the same applies when only the tub wall of a tub and shower combination is the problem. If you want to keep your current tub, a licensed plumber or contractor would have to evaluate the modification on their own, without Ella parts or Ella support. Staff usually suggest looking at a purpose-built walk-in tub instead, because it gives you a sealed low door, a seat and grab bars rather than an opening in a tub that was never designed to have one.

Tub Cut Versus Walk-In Tub, Side by Side

FeatureTub cut of an existing bathtubElla walk-in tubWhat it means for you
EntryAn opening cut into the tub wall, with or without a door or gateA sealed low door on an integrated gasket with a multi-latch gear and shaft mechanismThe walk-in door is watertight by design; the cut is an opening in a tub never designed to have one
Step-in heightnot listed3.5-inch threshold on the Capri; 3 inch threshold on the S-Class models; as low as 3.5 inches with the drain set below the subfloorThe walk-in threshold is far lower than the wall of a standard tub
SeatBather lowers down to the floor of the tubBuilt-in seat at a comfortable heightSitting rather than lowering to the floor is the main safety difference
Grab bars, faucet and drainnot listedGrab bars, fast-fill faucet and gravity dual drain designed to work togetherThe fixtures are matched to the tub rather than reused from the old one
Therapy optionsnot listedOptional hydro massage, air massage, heated seat and chromatherapyA therapeutic soak is only available on the purpose-built tub
Parts and supportNo Ella parts or supportAssembled and tested to order; Ella technical support at ellasbubbles.com/supportAny problem with a cut tub belongs to the contractor who cut it

Read across the rows and the pattern is the same each time. A tub cut changes one thing, the height of the wall you step over, and leaves everything else about a conventional tub in place, including the need to lower yourself to the floor and get back up. A walk-in tub is designed around a seated bather from the start, so the low threshold, the seat, the grab bars and the watertight door all work together, and the therapy systems are built into the shell at the factory rather than added afterward.

Why the Walk-In Door Cannot Be Added After the Fact

A walk-in tub's door, seal, frame and threshold are engineered as one assembly. The door closes on an integrated gasket, the latches are driven by a gear and shaft mechanism, the acrylic shell sits on a rustproof stainless steel frame, and every tub is assembled and tested to order before it ships. None of that can be added to a standard tub later, which is why Ella does not offer cut-ins or customizations of any kind.

The same principle applies in reverse: an Ella tub is not a candidate for a tub cut either. The installation manuals are explicit that the shell and the frame are never cut. The only cutting an Ella tub is designed for is limited and specific:

  • The extension panel that closes a 52 or 55 inch tub up to a 60 inch alcove is designed to be trimmed on site when the alcove is out of square or slightly under 60 inches.
  • In a recessed installation, the installer may cut the bottom of the apron and, for corner installations, the end panel to clear the floor, with masking tape and appropriate tools to protect the acrylic.
  • Holes may be cut in the deck for a switch, push control or aromatherapy canister. Fine crack-like lines sometimes appear around such a hole, and Hairline Lines Around a Hole Cut in the Tub Deck explains why they stay put and are hidden by the flange of the part.

Keeping Your Bathroom Layout with a Walk-In Tub

The practical worry behind most tub cut searches is disruption. Most Ella walk-in tubs go into the same three-wall alcove your current tub occupies, so you keep the room's layout and plumbing locations. When the tub is shorter than the alcove, an extension panel fills the gap; tubs shorter than 60 inches include one panel, left or right as specified on the order, and it takes a 52 or 55 inch tub to a standard 60 inch opening. If the exposed end is freestanding rather than against a wall, the reversible end panel is used instead. Why Doesn't the Extension Panel Attach on the Faucet Side? shows how to confirm which end of the frame carries the shelf brackets for the panel. A knee wall can hide the plumbing or carry fixtures where a wider gap remains.

Ella tubs use their own deck-mount faucet packages, so your existing tub spout and handles are normally replaced rather than reused. If reusing a wall-mounted faucet matters to you, the LayDown 30 by 60 has no factory faucet option and requires a customer-supplied faucet, typically wall-mounted.

Getting the Step-In as Low as Possible

If the reason you were considering a tub cut is a very low entry, look at how the walk-in threshold is set. Ella tubs leave the factory with the leveling legs preset so the 2 inch drain piping runs beneath the tub and above the floor, with approximately 3 inches of clearance under the tub. That is the standard installation on a slab, a condo or an upper floor and the one the warranty assumes. The tub can be lowered by putting the drain below the subfloor and trimming the apron, and thresholds can then be as low as 3.5 inches, but the warranty no longer covers the parts that were cut. Lowering the Tub: Below-Subfloor Drains, 3 Inch Thresholds, and What It Does to the Warranty covers that trade-off and the S-Class 3 inch threshold models. The video on this page is an owner's short tour of the low threshold entrance on an Ella walk-in tub, along with the light chromatherapy.

Video
Chapters in this video
  1. 0:00 Delightful Ella's Walk-In Tub The customer expresses delight with their Ella's walk-in tub.
  2. 0:17 Innovative Jet Design The customer highlights Ella's innovative jet design and hydro massage.
  3. 0:31 Light Chromatherapy Feature The customer enjoys the light chromatherapy feature, which sets a beautiful tone.

Watch: Low Threshold Walk-In Tub with Light Chromatherapy | Ella’s Bubbles with chapters and a full transcript.

Common Questions

Does Ella's Bubbles offer a tub cut service?
No. Ella manufactures complete walk-in bathtubs and does not cut a walk-through opening, add a door or gate, or alter an existing bathtub or tub and shower combination in any way. There is no Ella cut-in kit or conversion product. A licensed plumber or contractor would have to evaluate that kind of work on their own, without Ella parts or support.
Can a tub cut be done on an Ella walk-in tub?
No. The shell and frame of an Ella tub are never cut, and the door, seal, frame and threshold are built as one engineered assembly. The only cuts the manuals allow are trimming the extension panel, cutting the bottom of the apron or end panel in a recessed installation, and hole-sawing the deck for controls.
Will a walk-in tub fit where my current tub is?
Most Ella walk-in tubs go into the same three-wall alcove a conventional tub occupies, so the room's layout and plumbing locations stay put. When the tub is shorter than the alcove, the included extension panel takes a 52 or 55 inch tub to a standard 60 inch opening, and a knee wall can finish any wider gap.
How low is the step-in on an Ella walk-in tub?
The Capri has a 3.5-inch threshold and the S-Class models have a 3 inch threshold, far lower than the wall of a standard tub. With the drain set below the subfloor, thresholds on other models can be as low as 3.5 inches, but the apron or end panel parts cut for that installation lose their warranty coverage.
Can I keep my existing tub faucet with a walk-in tub?
Usually not. Ella tubs use their own deck-mount faucet packages, so the existing spout and handles are normally replaced. The exception is the LayDown 30 by 60, which has no factory faucet option and requires a customer-supplied faucet, typically wall-mounted.

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