United States · ADA · Illustrated standards guidance
Clear floor space and turning space
Illustrated guidance on wheelchair clear floor spaces, approaches, alcoves and turning spaces around interior fixtures and furniture.
- Publisher
- U.S. Access Board
- Edition
- Access Board guide to the 2010 ADA standards
- Search coverage
- 11 of 11 PDF pages
AccessibilityAnthropometry & ergonomicsStairs & circulation
Open original PDF at page 6 Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.
Chapter 3: Building Blocks Clear Floor or Ground Space and Turning Space
Knee and Toe Clearances
3” 8” min
Where knee and toe space is
required at an element, it must be
at least 17” deep.
6:1
18”
Beyond a depth of 8” measured
27” min from the leading edge, the 27”
KNEE minimum high knee clearance can
SPACE reduce 18” (to the 9” toe space)
over a 3” span.
TOE
9”
SPACE
6” max 11” min
max
17” min
Additional depth
must provide full
knee clearance
When the knee and toe depth
exceeds the 17” minimum, the
additional space must provide full
knee clearance at least 27” high.
25” max
min
6
Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.