Braillito Maps · Accessibility guides
ADA grab bar requirements: height, length and placement
The ADA grab bar height is 33 to 36 inches (840–915 mm) above the floor, measured to the top of the gripping surface, with the bar installed horizontally (2010 ADA Standards, 609.4). The same range applies at the toilet, in the shower and at the bathtub, which also gets a second, lower bar on its back wall. What changes from one fixture to another is how many bars there are, how long they are and which walls they go on. This guide gives every measurement with the section of the 2010 ADA Standards it comes from.
This is a summary. The official 2010 ADA Standards for Accessible Design are the reference.
Height, diameter and space from the wall
Section 609 of the 2010 ADA Standards sets the rules that every grab bar in a toilet or bathing room follows, wherever it is (2010 ADA Standards, 609.1). The sections for each fixture, 604 for toilets, 607 for bathtubs and 608 for showers, then say which walls the bars go on and how long they are.
| Element | Requirement | Section |
|---|---|---|
| Height | 33 to 36 inches (840–915 mm) above the floor, measured to the top of the gripping surface; installed horizontally | 2010 ADA Standards, 609.4 |
| Round bars | outside diameter of 1 1/4 to 2 inches (32–51 mm) | 2010 ADA Standards, 609.2.1 |
| Bars of other shapes | cross-section of 2 inches (51 mm) at most, and a perimeter of 4 to 4.8 inches (100–120 mm) | 2010 ADA Standards, 609.2.2 |
| Space from the wall | 1 1/2 inches (38 mm) | 2010 ADA Standards, 609.3 |
| Space below and at the ends | 1 1/2 inches (38 mm) minimum to any object that projects from the wall | 2010 ADA Standards, 609.3 |
| Space above | 12 inches (305 mm) minimum to any projecting object; 1 1/2 inches (38 mm) is enough to shower controls, shower fittings and other grab bars | 2010 ADA Standards, 609.3 |
| Strength | a vertical or horizontal force of 250 pounds (1112 N) at any point, on the bar, the fasteners, the mounting device or the supporting structure | 2010 ADA Standards, 609.8 |
| Surface and fittings | no sharp or abrasive elements, rounded edges, and bars that do not rotate in their fittings | 2010 ADA Standards, 609.5 and 609.6 |
Two details are easy to miss. The height is measured to the top of the bar, not to its center or to the bracket on the wall. And the space from the wall is one figure, not a minimum: the standard asks for 1 1/2 inches, so a bar that stands farther off the wall does not meet it either.
A bar can be mounted in any way that leaves a gripping surface where the standard asks for one, as long as it does not block the clear floor space the fixture needs (2010 ADA Standards, 609.7).
At the toilet: a side bar and a rear bar
An accessible toilet has two grab bars: one on the side wall closest to the toilet and one on the rear wall (2010 ADA Standards, 604.5). The toilet itself sits with its centerline 16 to 18 inches (405–455 mm) from that side wall (2010 ADA Standards, 604.2).
| Bar | Length and position | Section |
|---|---|---|
| Side wall | at least 42 inches (1065 mm) long; starts no more than 12 inches (305 mm) from the rear wall and reaches at least 54 inches (1370 mm) from it | 2010 ADA Standards, 604.5.1 |
| Rear wall | at least 36 inches (915 mm) long; extends at least 12 inches (305 mm) from the toilet centerline on one side and 24 inches (610 mm) on the other | 2010 ADA Standards, 604.5.2 |
| Height of both | 33 to 36 inches (840–915 mm) to the top of the gripping surface | 2010 ADA Standards, 609.4 |
The side bar figures fit together: a bar of the minimum length, 42 inches, mounted at the maximum distance from the rear wall, 12 inches, ends exactly at 54 inches. A shorter bar, or one mounted farther forward or farther back, falls short of one of the three numbers.
- Rear bar with a recessed fixture. Where a recessed fixture next to the toilet leaves no room for 36 inches, the rear bar can be 24 inches (610 mm) long, centered on the toilet (2010 ADA Standards, 604.5.2, exception 1).
- Rear bar and flush valve. Where the local authority requires the flush control of a flush valve in a spot that conflicts with the rear bar, the bar can be split or shifted to the open side of the toilet (2010 ADA Standards, 604.5.2, exception 2).
- Toilet paper. The dispenser is 7 to 9 inches (180–230 mm) in front of the toilet, measured to its centerline, with the outlet 15 to 48 inches (380–1220 mm) above the floor, and it may not be behind a grab bar (2010 ADA Standards, 604.7). If it goes above the side bar, the outlet stays at 48 inches or lower and the bar keeps its 33 to 36 inch height (2010 ADA Standards, advisory 604.7).
- Clear space. The space around the toilet, 60 inches (1525 mm) from the side wall by 56 inches (1420 mm) from the rear wall, may overlap its grab bars (2010 ADA Standards, 604.3.1 and 604.3.2).
The toilet seat height and the distance from the toilet to the side wall are in the guide to ADA toilet height; the sink and the turning space of the room, in the guide to ADA bathroom requirements.
In toilet stalls: wheelchair and ambulatory
- Wheelchair accessible stall. The same two bars: a side-wall bar that meets 604.5.1, on the wall closest to the toilet, and a rear-wall bar that meets 604.5.2 (2010 ADA Standards, 604.8.1.5). The stall is at least 60 inches (1525 mm) wide (2010 ADA Standards, 604.8.1.1).
- Ambulatory accessible stall. A narrower stall, 35 to 37 inches (890–940 mm) wide and at least 60 inches (1525 mm) deep (2010 ADA Standards, 604.8.2.1), with the toilet centerline 17 to 19 inches (430–485 mm) from the side partition (2010 ADA Standards, 604.2). It gets a side-wall bar that meets 604.5.1 on both sides of the stall (2010 ADA Standards, 604.8.2.3); that section lists no rear bar.
- When there has to be an ambulatory stall. In addition to the wheelchair accessible stall, where a restroom has six or more stalls, or six or more toilets and urinals together (2010 ADA Standards, 213.3.1).
In the shower
Shower grab bars follow section 609 too, and where a shower has more than one required horizontal bar, they are all at the same height above the floor (2010 ADA Standards, 608.3). Which walls they go on depends on the type of shower:
| Shower type | Where the bars go | Section |
|---|---|---|
| Transfer shower, 36 by 36 inches (915 × 915 mm) inside | across the control wall, and along the back wall to a point 18 inches (455 mm) from the control wall | 2010 ADA Standards, 608.2.1 and 608.3.1 |
| Standard roll-in shower, at least 30 inches (760 mm) wide by 60 inches (1525 mm) deep | with a seat: on the back wall and on the side wall opposite the seat, never above the seat; without a seat: on all three walls; each bar no more than 6 inches (150 mm) from the adjacent walls | 2010 ADA Standards, 608.2.2 and 608.3.2 |
| Alternate roll-in shower, at least 36 inches (915 mm) wide by 60 inches (1525 mm) deep | on the back wall and on the side wall farthest from the entry, never above the seat; no more than 6 inches (150 mm) from the adjacent walls | 2010 ADA Standards, 608.2.3 and 608.3.3 |
A transfer shower has a folding or non-folding seat (2010 ADA Standards, 608.4), and its controls go on the wall opposite the seat, 38 to 48 inches (965–1220 mm) above the shower floor (2010 ADA Standards, 608.5.1). In both kinds of roll-in shower the controls go above the grab bar and no higher than 48 inches (1220 mm) (2010 ADA Standards, 608.5.2 and 608.5.3).
If the shower head slides on a vertical bar to adjust its height, that bar has to be installed so it does not get in the way of the grab bars (2010 ADA Standards, 608.6).
Shower sizes, seats and the rest of the controls are in the guide to ADA shower requirements.
At the bathtub
On the back wall of an accessible bathtub there are always two bars: one at the usual height of 33 to 36 inches, and a lower one 8 to 10 inches (205–255 mm) above the rim of the tub (2010 ADA Standards, 607.4.1.1, 607.4.2.1 and 609.4). The rest depends on whether the tub has a permanent seat at its head end or a removable seat inside it.
| Wall | Tub with a permanent seat | Tub without a permanent seat |
|---|---|---|
| Back wall | two bars, each no more than 15 inches (380 mm) from the head end wall and 12 inches (305 mm) from the control end wall (2010 ADA Standards, 607.4.1.1) | two bars, each at least 24 inches (610 mm) long, no more than 24 inches (610 mm) from the head end wall and 12 inches (305 mm) from the control end wall (2010 ADA Standards, 607.4.2.1) |
| Control end wall | one bar at least 24 inches (610 mm) long, at the front edge of the tub (2010 ADA Standards, 607.4.1.2) | one bar at least 24 inches (610 mm) long, at the front edge of the tub (2010 ADA Standards, 607.4.2.2) |
| Head end wall | none listed (2010 ADA Standards, 607.4.1) | one bar at least 12 inches (305 mm) long, at the front edge of the tub (2010 ADA Standards, 607.4.2.3) |
The tub controls go on an end wall, between the rim of the tub and the grab bar (2010 ADA Standards, 607.5).
Children’s restrooms, homes and private offices
- Toilets for children. Where a toilet is built for children’s use under 604.9, its grab bars go 18 to 27 inches (455–685 mm) above the floor, to the top of the gripping surface (2010 ADA Standards, 609.4). An advisory table narrows that by age: 18 to 20 inches (455–510 mm) for ages 3 and 4, 20 to 25 inches (510–635 mm) for ages 5 to 8, and 25 to 27 inches (635–685 mm) for ages 9 to 12 (2010 ADA Standards, advisory 604.9).
- Homes. In residential dwelling units, grab bars do not have to be installed at the toilet, the bathtub or the shower, as long as the walls have reinforcement placed so the bars can be added (2010 ADA Standards, 604.5, 607.4 and 608.3, exception 2 of each). That reinforcement has to allow bars that meet every requirement, including length, height and strength (2010 ADA Standards, advisory 604.5, exception 2).
- Private offices. The same applies to a toilet or bathing room for a single occupant that is reached only through a private office and is not for common or public use (2010 ADA Standards, 604.5, 607.4 and 608.3, exception 1 of each).
- Detention and correctional facilities. At the toilet, grab bars are not required in housing or holding cells specially designed without protrusions to prevent suicide (2010 ADA Standards, 604.5, exception 3); the bathtub and shower sections have no such exception (2010 ADA Standards, 607.4 and 608.3).
Grab bars in Braillito Maps
Braillito Maps is a community map where every place answers a ten-point checklist. Four points are about mobility: step-free entrance or ramp, wide doorway, accessible restroom and accessible parking. Six are for people who are blind or have low vision: tactile paving, braille signage, braille menu, audible signals, guide dogs welcome and a quiet environment. For each one you answer Yes, No or Don’t know (Sí, No, ?), and a place’s score is how many of the ten it has, for example 7 out of 10.
Grab bars belong to the accessible restroom point (Baño adaptado in the app). The app does not ask for inches: it asks whether the place has a restroom designed for people with reduced mobility, and the measurements on this page are a way to answer with confidence. A side bar and a rear bar at the toilet, horizontal and firm when you hold them, with room beside the toilet to pull up a wheelchair, point to Yes. A missing rear bar or a loose side bar is exactly what a wheelchair user wants to know before going. Answer Yes or No only if you saw it; if not, leave Don’t know.
A photo of the restroom and a review with what you found say more than the answer alone: anyone can add photos and reviews to a place, and correct its checklist from the place’s page with Correct the listing (Corregir la ficha). More in the Braillito Maps help.
Frequently asked questions
What is the ADA grab bar height?
33 to 36 inches (840–915 mm) above the floor, measured to the top of the gripping surface, with the bar horizontal. At toilets built for children it is 18 to 27 inches (455–685 mm) (2010 ADA Standards, 609.4), and the lower of the two bars on a bathtub’s back wall goes 8 to 10 inches (205–255 mm) above the rim (2010 ADA Standards, 607.4.1.1 and 607.4.2.1).
How long do ADA grab bars have to be?
At the toilet, the side wall bar is at least 42 inches (1065 mm) long and the rear wall bar at least 36 inches (915 mm), or 24 inches (610 mm) where a recessed fixture leaves no room (2010 ADA Standards, 604.5.1 and 604.5.2). At a bathtub, the bar on the control end wall is at least 24 inches (610 mm) long (2010 ADA Standards, 607.4.1.2 and 607.4.2.2).
How far from the wall is an ADA grab bar?
1 1/2 inches (38 mm) between the wall and the bar (2010 ADA Standards, 609.3).
What is the ADA grab bar diameter?
1 1/4 to 2 inches (32–51 mm) outside diameter for round bars. Bars of other shapes are 2 inches (51 mm) at most across, with a perimeter of 4 to 4.8 inches (100–120 mm) (2010 ADA Standards, 609.2.1 and 609.2.2).
Where do grab bars go in an ADA shower?
In a transfer shower, across the control wall and along the back wall to 18 inches (455 mm) from the control wall (2010 ADA Standards, 608.3.1). In a standard roll-in shower with a seat, on the back wall and the side wall opposite the seat, and on all three walls if there is no seat (2010 ADA Standards, 608.3.2).
Does the ADA require a vertical grab bar at the toilet?
The 2010 ADA Standards do not list one. At the toilet they ask for a side wall bar and a rear wall bar (2010 ADA Standards, 604.5), and grab bars are installed in a horizontal position (2010 ADA Standards, 609.4).
More accessibility guides
- ADA toilet height: seat height, distance from the side wall, clear floor space, flush control, toilet paper and stalls.
- ADA shower requirements: transfer and roll-in shower sizes, the seat, grab bars, controls, the hand-held shower and the threshold.
- ADA bathroom requirements: toilet height and position, grab bar height, sink height, stall sizes and turning space.
- ADA compliance: a checklist for small businesses, with the 2010 Standards section behind each item.
- ADA door width: 32 inches of clear width, maneuvering space, thresholds, hardware and opening force.
- Accessibility symbols: what the wheelchair symbol means, where it is required and the other access symbols.
- 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.
Braillito Maps
Find places with ramps, accessible toilets or tactile paving near you in Braillito Maps
In Braillito Maps, every place answers ten questions. One is the accessible restroom: whether there is a restroom designed for people with reduced mobility. It is built by the people who need it, and every place gets a score out of ten.
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