The two ADA clearances people ask about when planning a walk-in tub for a wheelchair user are a clear floor space of 30 by 48 inches and a turning space 60 inches in diameter, both from the 2010 ADA Standards. In a private home those figures are a planning reference rather than a requirement, but they are a good one, because an Ella outward-swing door needs its own clear floor space too: the U-shape door swings 165 degrees, the Transfer L-shape door opens 172 degrees, and the HomeCare door swings a full 180 degrees. This page puts the ADA figures and the Ella door envelopes side by side so you can lay out a wheelchair approach with confidence.

The ADA Clearances People Ask About: Clear Floor Space and Turning Space

Chapter 3 of the 2010 ADA Standards defines the floor and ground space a wheelchair needs. Section 305.3 sets a clear floor space of 30 inches minimum by 48 inches minimum for a single stationary wheelchair. Section 304.3.1 sets a circular turning space 60 inches in diameter, and section 304.3.2 allows a T-shaped space as an alternative. Chapter 6 adds, in section 607.2, that a bathtub in a covered facility has a clearance in front of it that extends the length of the tub and is 30 inches deep. Read the official guidance: U.S. Access Board, Chapter 3: Floor and Ground Surfaces.

Why These Figures Are a Planning Reference in a Private Home, Not a Requirement

The ADA Standards apply to covered facilities such as hotels, clinics and public buildings. A private residence is not covered unless part of it is open to the public as a business, so nobody inspects a home bathroom against these figures. There is also no ADA product certification, which our ADA and accessibility answers page explains. Even so, the figures describe the space a real wheelchair needs to park and turn, so therapists and accessibility remodelers use them as targets in homes every day.

Ella Door Swing Arcs by Door Family

Inward-swing doors (the stainless steel family, the Ultra, the Standard, Zen and Flow, and the LayDown glass door) open into the tub and need no floor space outside it, which is why they suit small bathrooms. The outward-swing families need a clear arc in front of the door:

The full swing envelopes, with a floor-marking method, are in planning floor space for the outward-swing door. If a fixture already sits inside the arc, tub door will not clear the toilet covers the options.

Door Opening Widths That Are Published

The spec drawings print a door opening for only some models. The Monaco and Mobile drawings both show a 19 1/4 inch door opening, with a door width of 19 1/2 inches on the Monaco and 19 5/8 inches on the Mobile. The LayDown glass door prints a 19 5/8 inch opening on its 115 degree arc. The HomeCare door is 27 inches wide. The Transfer L-shape door is the same door on every size in the family, so the opening does not grow with the tub; the family drawing prints the 172 degree angle, a 2-latch gear and shaft lock, and a handle on the front of the door. All published widths, together with the working figures for the stainless steel inward door, are in door opening widths and swing arcs by model.

Laying Out a Wheelchair Approach to a Transfer Tub

The Transfer family is built for three ways in: a lateral transfer from a wheelchair parked right up against the open L-shape door, a sit-and-swing entry where the bather sits on the seat edge and lifts the legs over the low threshold, and a plain step-in for someone who can stand. Because there is no side wall beside the seat when the door is open, the chair pulls up alongside the tub, the arm drops, and the bather slides across onto the molded seat. The Transfer entry methods and door walkthrough describes each method step by step.

A layout that works well combines the two sets of numbers:

• ☐ Reserve the door arc: mark the 172 degree envelope on the floor in front of the planned door position and keep it permanently clear.
• ☐ Reserve the parking space: a 30 by 48 inch rectangle beside the tub, parallel to the open door, where the chair sits during the transfer. Our toilet clearance guide suggests budgeting the tub width plus about 36 inches beside the tub.
• ☐ Reserve a place to turn: a 60 inch circle, or a T-shaped space, somewhere in the room so the chair can come in facing the tub and leave facing the door.
• ☐ Check the fixture the door wing passes over: the L-shape cutout sits about 20 to 21 inches above the floor, so measure the toilet seat height and its distance from the hinge side at the planned door position.
• ☐ Confirm the handing: door and seat on one side, drains on the opposite side, per bathroom layout planning.
• ☐ Leave caregiver room beyond the arc if someone assists, and a spot for a shower chair or towel within reach.

The Transfer sizes run from the 26 inch wide Transfer26 to the 36 inch wide TransferXXL with its 29 inch seat; seat width decides comfort, and the door opening is the same across the family.

Who Signs Off: Installer, Inspector, Therapist

Your installer confirms the door arc is clear once the tub is leveled and the door aligned, and that service access is preserved. The local inspector checks plumbing, electrical and structural work, and in a covered facility the architect applies the ADA Standards. The bather's occupational or physical therapist decides which entry method suits the person and how much space the transfer really needs. The tub's door geometry is described here so that team can plan around it, and the therapist has the final word on what suits the bather.

Common Questions

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