This is the measuring checklist to fill in before your walk-in tub is ordered: the bather, the path in, the alcove, the door side and the utilities, one line per measurement. Print it, walk the house with a tape, and bring the list to your Ella dealer or the team at (800) 480-6850.
How to Use This Page
Write every figure in inches at the tightest point, with door stops and trim in place. Two sizes matter: the actual size on the spec sheet, which sits in the alcove, and the shipping size, which travels through the house. Never rely on the rounded name: the Elite's actual size is 30 x 52 x 35 inches, so its passage must be wider than 30 inches, and the Petite is 27.5 inches wide.
The Bather
- ☐ Hip width, seated, at the widest point: ______ in (the seat must be wider than this)
- ☐ Shoulder width, seated: ______ in
- ☐ Seated length, head to feet, relaxed: ______ in
- ☐ Compare with the drawings in seat sizes and soaking depth
The video shows the three measurements taken seated in a chair facing a wall.
The Path in
Use the shipping size; the full method is in the doorway measurement guide.
- ☐ Entry door clear width: ______ in
- ☐ Each hall width: ______ in; each interior door: ______ in
- ☐ Each corner the tub must pivot through: ______ in
- ☐ Bathroom door clear width: ______ in
| Model | Actual size (W x L x H) | Shipping size |
|---|---|---|
| Flow | 28 x 48 x 36.5 in | 32 x 54 x 49 in |
| Petite | 27.5 x 52 x 35 in | 31 x 57 x 47 in |
| Elite | 30 x 52 x 35 in | 32 x 54 x 50 in |
| ShaK | 36 x 72 x 39 in | 39 x 74 x 49 in |
All models: walk-in tub dimensions by model.
The Alcove
- ☐ Alcove length at deck height: ______ in; at the floor: ______ in
- ☐ Alcove width: ______ in
- ☐ Difference between the two diagonals: ______ in
- ☐ Lowest window sill: ______ in; countertop: ______ in (compare with the tub height; see low windows and countertops)
- ☐ 52 and 55 inch tubs plus extension panel fill a 60 inch alcove; none for the Ultimate, Big4One, ShaK, Front Entry, Mobile, Transfer60 or two-seat models (alcove fit and extension panels)
Door Side, Drain Side and Swing Clearance
- ☐ Which side is the house drain, facing the tub? Left / Right
- ☐ Door and drains sit on opposite sides: right door, left drains (choosing left or right hand); confirm with your installer
- ☐ Clear floor in front of an outward door: ______ in (U-shape 165, Transfer 172, HomeCare 180 degrees)
- ☐ Hinge side to toilet, vanity and bathroom door: ______ in
Utilities
- ☐ House drain size: ______ in (2 inch recommended)
- ☐ Supply line size: ______ in (3/4 inch recommended, with reachable shut-off valves)
- ☐ Water heater capacity: ______ gal (under 75 gallons is not recommended)
- ☐ Dedicated GFCI outlet location and count: ______ (20A/120V lines, 15A on the Flow; no appliances within 3 feet of the tub)
- ☐ Service access to the pump end after the walls are finished: Yes / No
Bring This List to Your Dealer or the Team
With these lines filled in, your Ella dealer or the team at (800) 480-6850 can confirm the model, door side, panels and GFCI lines. Keep the sheet for your installer.
Common Questions
Should I measure against the tub size or the crate size?
Which tub fits a 28 inch doorway?
Why does the house drain side decide the door side?
Does the tub come apart to fit through a tight hall?
Still need help? Open a ticket at ellasbubbles.com/support or call (800) 480-6850.