Braillito Maps · Accessibility guides
ADA bench requirements: height, size and back support
An accessible bench under the 2010 ADA Standards has a seat 17 to 19 inches (430–485 mm) high (2010 ADA Standards, 903.5), at least 42 inches (1065 mm) long and 20 to 24 inches (510–610 mm) deep (2010 ADA Standards, 903.3), with back support or fixed to a wall (2010 ADA Standards, 903.4), and a clear floor space at the end of the seat (2010 ADA Standards, 903.2). The Standards require one in each accessible dressing, fitting or locker room (2010 ADA Standards, 803.4) and in saunas and steam rooms that have seating (2010 ADA Standards, 612.2). These are the measurements, where a bench is required, and what changes for benches outdoors on federal land.
This is a summary. The official 2010 ADA Standards for Accessible Design are the reference.
The measurements of an ADA bench
| Element | Requirement | Section |
|---|---|---|
| Seat height | 17 inches (430 mm) minimum and 19 inches (485 mm) maximum to the top of the seat, above the floor or ground | 2010 ADA Standards, 903.5 |
| Seat length | 42 inches (1065 mm) minimum | 2010 ADA Standards, 903.3 |
| Seat depth | 20 inches (510 mm) minimum and 24 inches (610 mm) maximum | 2010 ADA Standards, 903.3 |
| Back support | 42 inches (1065 mm) long minimum, from 2 inches (51 mm) maximum above the seat to 18 inches (455 mm) minimum above it, no more than 2½ inches (64 mm) from the rear edge of the seat, measured horizontally; or the bench is fixed to a wall | 2010 ADA Standards, 903.4 |
| Strength | withstands a vertical or horizontal force of 250 pounds (1112 N) at any point on the seat, fastener, mounting device or supporting structure | 2010 ADA Standards, 903.6 |
| Wet locations | a slip resistant seat that does not accumulate water | 2010 ADA Standards, 903.7 |
| Clear floor space | 30 by 48 inches (760 × 1220 mm) minimum, at the end of the seat and parallel to its short axis | 2010 ADA Standards, 903.2; 2010 ADA Standards, 305.3 |
The bench is built for transferring from a wheelchair, which is why the clear floor space sits at the end of the seat. The advisory note suggests grab bars on a wall next to the bench, not on the seat back, and says that grab bars, if provided, cannot block the transfer (2010 ADA Standards, advisory 903.4). Another advisory note explains the height: 17 to 19 inches is the height of a typical wheelchair seat, although wheelchair seats can be lower for people of short stature or children (2010 ADA Standards, advisory 803.1). Advisory notes explain the requirements but do not set enforceable requirements of their own (2010 ADA Standards, 28 CFR 36.406(b)).
A seat in a shower is a different element with its own rules; see ADA shower requirements, and for the bars beside it, ADA grab bar requirements.
Where an accessible bench is required
Section 903 says how a bench is built. Other sections say where one is needed:
- Dressing, fitting and locker rooms. Where they are provided, at least 5 percent, and no fewer than one, of each type of use in each cluster comply with 803 (2010 ADA Standards, 222.1), and each of those rooms has a bench complying with 903 (2010 ADA Standards, 803.4). A cluster is a group of rooms close to one another, generally within sight of or next to each other (2010 ADA Standards, advisory 222.1). In alterations where that is technically infeasible, one room for each sex on each level complies, or unisex rooms where only unisex rooms are provided (2010 ADA Standards, 222.1, exception).
- The rest of the room. The same accessible dressing room has a turning space; its door does not swing into the room unless there is a clear floor space beyond the arc of the door; and its shelves are 40 to 48 inches (1015–1220 mm) high, with coat hooks within reach (2010 ADA Standards, 803.2, 803.3 and 803.5).
- Saunas and steam rooms. Where seating is provided, at least one bench complies with 903, and the door does not swing into its clear floor space; a readily removable bench may obstruct that space and the turning space (2010 ADA Standards, 612.2 and its exception, and 612.3). Where saunas or steam rooms are clustered, no more than 5 percent of each type in each cluster, and no fewer than one, have to comply (2010 ADA Standards, 241, exception). The 1991 Standards had no rules for saunas and steam rooms, so existing ones get no safe harbor and are brought up to the 2010 Standards to the extent readily achievable (ADA Title III regulations, 28 CFR 36.304(d)(2)(iii)(I)).
- Holding and housing cells with mobility features: where benches are provided, at least one complies with 903 (2010 ADA Standards, 807.2.2).
Benches outdoors on federal land
In parks, the detailed rules for picnic areas, viewing areas and trails are part of the Architectural Barriers Act Standards and apply only to facilities built or altered by federal agencies, or on federal land on their behalf, for example under a concession contract (ABA Standards, F201.4). Benches are one of the outdoor constructed features those rules cover, together with picnic tables, grills and trash receptacles (ABA Standards, F106.5, outdoor constructed features). At least 20 percent, and no fewer than one, of each type of outdoor constructed feature complies with 1011 in picnic areas that serve accessible picnic units, in viewing areas and along trails (ABA Standards, F245.3, F246.3 and F247.5).
For a bench, section 1011 sets the clear ground space; its specific rules in 1011.4 to 1011.8 are for picnic tables, fire rings and grills, water spouts, rinsing showers and viewing scopes (ABA Standards, 1011.1). The clear ground space is at least 36 by 48 inches (915 × 1220 mm), near the bench, with one side next to the outdoor recreation access route or trail, without overlapping the route or another clear ground space (ABA Standards, table 1011.2.1). Its surface is firm and stable, its slope no steeper than 1:48, or 1:20 where needed for drainage on surfaces other than asphalt, concrete or boards, and openings in it do not let a sphere of more than ½ inch (13 mm) through (ABA Standards, 1011.2.2 to 1011.2.4). The beach access routes that reach the sand are in accessible beaches.
How to check a bench with a tape measure
If you run a gym, a pool or a clothing store, five measurements cover most of section 903:
- Height. From the floor to the top of the seat: 17 to 19 inches (2010 ADA Standards, 903.5).
- Length and depth. At least 42 inches long, and 20 to 24 inches from front to back (2010 ADA Standards, 903.3).
- Back. A backrest along the 42 inches, starting no more than 2 inches above the seat and reaching at least 18 inches above it, or a wall right behind the seat (2010 ADA Standards, 903.4).
- At the end. A clear space of at least 30 by 48 inches at one end of the bench, running the same way as the short side of the seat (2010 ADA Standards, 903.2 and 305.3).
- The door. In a dressing room, the door does not swing into the room unless there is a clear floor space beyond its arc (2010 ADA Standards, 803.3).
Then count: at least 5 percent of each type of dressing, fitting or locker room in each cluster, and no fewer than one (2010 ADA Standards, 222.1).
Benches in Braillito Maps
A bench in a changing room or a sauna is one of the details that decide whether a gym, a pool or a store works for you. Braillito Maps is a community map that answers ten questions about each place: step-free entrance or ramp, wide doorway, accessible restroom, accessible parking, tactile paving, braille signage, braille menu, audible signals, guide dogs welcome and a quiet environment.
Benches are not one of the ten, so the map does not record them. Several of the ten still tell you whether you can get there and get in. Step-free entrance or ramp, wide doorway and accessible parking cover the way in; parking is explained in accessible parking. Accessible restroom says whether there is one you can use, and braille signage whether you can find the changing rooms without asking.
Each question is answered yes or no, or stays without data until someone knows. The score of a place is the number of yes answers out of ten, and its color always appears next to the number, never on its own. Only mark what you saw, and if what a place says is wrong, use “Report a problem”. Meet Braillito Maps.
Frequently asked questions
What is the ADA bench height?
17 to 19 inches (430–485 mm) from the floor or ground to the top of the seat (2010 ADA Standards, 903.5).
What size is an ADA bench?
The seat is at least 42 inches (1065 mm) long and 20 to 24 inches (510–610 mm) deep (2010 ADA Standards, 903.3).
Does an ADA bench need a back?
It needs back support or has to be fixed to a wall. The back support is at least 42 inches (1065 mm) long and runs from no more than 2 inches (51 mm) above the seat to at least 18 inches (455 mm) above it (2010 ADA Standards, 903.4).
Does a locker room need an accessible bench?
Yes. Each accessible dressing, fitting or locker room has a bench complying with section 903, and at least 5 percent of each type of these rooms in each cluster, and no fewer than one, are accessible (2010 ADA Standards, 222.1 and 803.4).
How much clear floor space does an ADA bench need?
At least 30 by 48 inches (760 × 1220 mm), at the end of the seat and parallel to the short side of the bench (2010 ADA Standards, 903.2 and 305.3).
How much weight does an ADA bench have to hold?
The materials must not exceed their allowable stresses under a vertical or horizontal force of 250 pounds (1112 N) applied at any point on the seat, fasteners, mounting or supporting structure (2010 ADA Standards, 903.6).
More accessibility guides
- ADA table height: how high an accessible table, desk or work surface is, the knee and toe space under it, and how many have to comply.
- ADA turning space: the 60-inch turning circle, the T-shaped turn, the 30 by 48 inch clear floor space and where the ADA asks for each.
- ADA reach range: forward and side reach, with and without an obstruction, and where the 15 to 48 inch range applies: switches, outlets and controls.
- ADA shower requirements: transfer and roll-in shower sizes, the seat, grab bars, controls, the hand-held shower and the threshold.
- ADA grab bars: grab bar height, length, diameter and wall spacing, and where the bars go at the toilet, in the shower and at the bathtub.
- 2010 ADA Standards: what each of the ten chapters covers, since when the Standards apply and to which buildings, with the guide for each element.
- Accessible beaches: beach access routes to the water: width, slopes and resting spaces under US federal standards, and what to check.
- All accessibility guides
Sources
Every figure in this guide comes from one of these official texts, which we read in October 2026.
- 2010 ADA Standards for Accessible Design. U.S. Department of Justice, published September 15, 2010; required for new work since March 15, 2012.
- Americans with Disabilities Act Title III Regulations (28 CFR part 36). U.S. Department of Justice (ADA.gov), current text with its appendices, read October 2026.
- Architectural Barriers Act (ABA) Accessibility Standards. U.S. Access Board, current edition, read October 2026.
Braillito Maps
Find places with ramps, accessible toilets or tactile paving near you in Braillito Maps
In Braillito Maps, every place answers ten questions: step-free entrance or ramp, wide doorway, accessible restroom, accessible parking, tactile paving, braille signage, braille menu, audible signals, guide dogs welcome and a quiet environment. It is built by the people who need it, and every place gets a score out of ten.
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