Roll In Shower Dimensions: ADA Minimums and Every Size We Install
The numbers that matter before you buy: shower size, threshold, clear floor space in front, seat height and grab bar height, from the ADA standards and from the units we actually install.
Accredited since 2012★ 4.9 Google (35 reviews)In business since 2012No in-home sales visitWhat size is a roll in shower?
The ADA minimum for a roll in shower is 60 inches wide by 30 inches deep with a threshold no higher than 1/2 inch. The alternate roll in shower is 60 x 36. A transfer shower is exactly 36 x 36. Residential roll in showers run from about 48 x 34 for small bathrooms up to 63 x 33 and larger.
ADA dimensions at a glance
| Item | Roll in shower | Transfer shower |
|---|---|---|
| Inside size | 60 in wide × 30 in deep minimum | 36 × 36 in exactly |
| Threshold | 1/2 in max | 1/2 in (2 in allowed in some existing buildings) |
| Clear floor space in front | 60 × 30 in minimum, along the entry | 48 in long × 36 in deep |
| Seat height | 17 to 19 in | 17 to 19 in (L-shaped or rectangular) |
| Grab bars | 33 to 36 in above the floor | 33 to 36 in above the floor |
| Handheld shower hose | 59 in long minimum | 59 in long minimum |
Source: 2010 ADA Standards for Accessible Design, sections 608 and 609. Homes are not required to meet ADA, but these numbers are the safe target for wheelchair users.
Measure before you call
- Old tub alcove: wall to wall, and back wall to the front edge
- Space in front of the shower for a wheelchair to turn
- Floor type: wood joists or concrete slab
- Drain location: left, right or center
- Narrowest door on the way in (multi-piece units fit through 30 inches)
Every roll in and accessible shower we install, by size
Width × depth in inches.
| Model | Width × depth | Type | Build |
|---|---|---|---|
| Bestbath 4038 ADA Transfer Shower | 40" × 38" | ADA transfer | — |
| Bestbath 4834 Roll In Shower, Multi-Piece | 48" × 34" | Roll in | Multi-piece |
| Bestbath 4836 Barrier Free Roll In Shower | 48" × 36" | Roll in | — |
| Bestbath 6030 Roll In Shower for Wheelchairs, Designer Finish | 60" × 30" | Roll in | — |
| Bestbath 6030 Roll In Shower, Multi-Piece | 60" × 30" | Roll in | Multi-piece |
| Standard 6030 Roll In Shower | 60" × 30" | Roll in | — |
| Bestbath 6033 One-Piece Roll In Shower, Low Beveled Threshold | 60" × 33" | Roll in | One-piece |
| Bestbath 6033 Walk In Shower | 60" × 33" | Roll in | — |
| Bestbath 6033 Roll In Shower, Multi-Piece | 60" × 33" | Roll in | Multi-piece |
| Deluxe 6033 Handicap Shower System | 60" × 33" | Roll in | — |
| Bestbath 6034 Tub Shower Combo | 60" × 34" | Tub-shower | — |
| Bestbath 6036 Roll In Shower, Multi-Piece | 60" × 36" | Roll in | Multi-piece |
| Extra Wide 6036 Walk In Shower for Wheelchairs | 60" × 36" | Roll in | — |
| Bestbath 6331 ADA Compliant Roll In Shower | 63" × 31" | Roll in | — |
| Bestbath 6333 ADA Roll In Shower, Multi-Piece | 63" × 33" | Roll in | Multi-piece |
Which size should you pick?
- 60 x 30: replaces a standard 5 ft tub with no wall moves. The most common choice.
- 60 x 33 or 60 x 36: more room for a caregiver standing in the shower, or a larger wheelchair or shower chair.
- 63 x 33 and up: bariatric bathers or two-person assisted bathing.
- 48 x 34 or 48 x 36: small bathrooms and old stall showers.
- 40 x 38 transfer: for people who slide from a chair onto the seat rather than roll in.
The dimension people forget: the space in front
A wheelchair needs room to line up with the opening. Plan a clear 60 inch turning circle in the bathroom if you can, and at least a 30 x 60 clear space along the shower entry. If the toilet or vanity sits right in front of the shower, a narrower 48 inch unit with a wider entry can work better than a 60 inch unit with a cramped approach.
Not sure? Send a few photos for a virtual estimate and we will tell you which sizes fit.
Roll In Shower Dimensions FAQ
What are the ADA dimensions for a roll in shower?
At least 60 inches wide by 30 inches deep inside, a threshold of 1/2 inch or less, a clear floor space at least 60 x 30 inches along the entry, a seat 17 to 19 inches high and grab bars 33 to 36 inches above the floor.
What is the smallest roll in shower?
About 48 x 34 inches for residential units. The ADA minimum for a roll in shower is 60 x 30; a 36 x 36 transfer shower is smaller but needs the bather to transfer onto a seat.
Will a roll in shower fit where my bathtub is?
Yes. A 60 x 30 roll in shower has the same footprint as a standard 5 foot tub and is usually installed in one day.
How high is the seat in a roll in shower?
17 to 19 inches above the floor, the same as a wheelchair seat, so the bather can slide across.
How much space do I need in front of a roll in shower?
Plan at least 60 x 30 inches of clear floor along the entry, and a 60 inch turning circle in the room if the bather uses a wheelchair.
Let's make your bathroom a safer room in the house.
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