§304 Turning Space
Key numbers — Turning Space
Where Are Turning Spaces Required?
A turning space is needed anywhere a person in a wheelchair must reverse direction. Common locations include:
- Dead-end corridors — at the end of any hallway longer than a wheelchair
- Accessible toilet rooms — within the room itself (not necessarily inside the stall)
- Dressing and fitting rooms
- Kitchenettes and break rooms
- Transient lodging guest rooms
You can use either the 60-inch diameter circle or the T-shaped option — whichever fits your layout.
Official Standard
2010 ADA Standards §304.1
Turning spaces are required wherever a wheelchair user needs to change direction — at the end of dead-end corridors, inside accessible restrooms, within dressing rooms, and in kitchenettes and break rooms.
Design Tips
The circular space is simpler but needs a full 5-foot clear diameter. The T-shaped option often fits better in narrow spaces like corridors or between bathroom fixtures. Key points to remember:
- Knee and toe clearance under lavatories, counters, and benches can overlap with the turning space
- Doors can swing into the turning space, but there must still be usable space
- The floor must be level — max 1:48 slope (about 2%)
- No changes in level are permitted within the turning space
Handrail Profiles
Key numbers — Handrails
Where Are Handrails Required?
Handrails are required on both sides of:
- Ramps with a rise greater than 6 inches
- Stairs that are part of a means of egress
- Walking surfaces with slopes steeper than 1:20 (5%)
Handrails must be mounted between 34 and 38 inches above the walking surface (measured from the top of the rail to the stair nosing or ramp surface). They must extend 12 inches beyond the top and bottom of stairs and ramps.
Official Standard
2010 ADA Standards §505.1
"Handrails provided along walking surfaces complying with 403, required at ramps complying with 405, and required at stairs complying with 504 shall comply with 505."
Handrail Extensions
Handrails must extend beyond the stairs or ramp so users can stabilize themselves before and after the slope change:
- Top extension: 12 inches minimum, horizontal, at the same height
- Bottom extension: slopes down with the stair for one tread depth, then extends 12 inches horizontally
- Extensions must return to the wall or post (no open, protruding ends that could catch clothing or injure)
Official Standard
2010 ADA Standards §505.10
At the top of stairs and ramps: extend horizontally 12 inches minimum beyond the top riser nosing. At the bottom: extend at the slope of the stair flight for a distance equal to one tread depth beyond the last riser nosing, then extend horizontally 12 inches minimum.
Important Note
This guide covers the most common turning space and handrail requirements. Specific building types (such as detention facilities or residential units) may have additional or modified requirements. Consult a qualified ADA professional for your specific facility.
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