The 2010 ADA Standards place horizontal grab bars 33 to 36 inches above the floor, measured to the top of the gripping surface, with a diameter of 1.25 to 2 inches and 1.5 inches of space from the wall. Bars must support 250 pounds of force, so they need to be anchored into studs, wood blocking or with anchors rated for the load. Suction-cup bars are for balance only and should never be relied on to hold body weight.
Grab bars are one of the cheapest and most effective ways to prevent bathroom falls. Placement and anchoring matter most.
ADA reference dimensions
| Item | Guidance |
|---|---|
| Height (horizontal bars) | 33 to 36 in to top of gripping surface |
| Diameter | 1.25 to 2 in |
| Wall clearance | 1.5 in |
| Strength | 250 lb force |
| Toilet side wall | 42 in bar |
| Toilet rear wall | 36 in bar |
ADA rules apply to public buildings. At home, set bars where the person actually reaches when sitting, standing and transferring.
Where to place them
- Toilet: side wall horizontal bar; rear bar or fold-down bar if there is no side wall.
- Tub: a vertical bar at the entry, a horizontal bar on the long wall.
- Shower: a vertical bar at the entry, a horizontal bar on the control wall.
Mounting
- Find studs, or install wood blocking during a remodel.
- Use stainless screws long enough for the stud.
- Where studs are not available, use anchors rated for grab bars and the wall type.
- Seal around mounts in wet areas.
Finishes and grips
Textured or knurled finishes help wet hands. Choose a contrasting color for users with low vision.
Complete the bathroom with shower chairs and toilet aids. For entry access, see ramps, and for funding, Medicare coverage.
Browse bathroom safety.
Common questions
How high should a grab bar be?
33 to 36 inches above the floor to the top of the bar for horizontal bars near toilets and in showers, under ADA guidance. Adjust at home for the user.
Are suction cup grab bars safe?
Not for supporting body weight. They can release without warning. Use them only for balance, if at all.
Can grab bars go into drywall?
Only with anchors rated for the load. The most secure installation is into studs or blocking behind the wall.
What length grab bar for a toilet?
ADA guidance uses a 42-inch bar on the side wall and a 36-inch bar behind the toilet. Shorter bars can work at home if they are placed where the user needs them.