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United States · ADA · Accessibility standard

2010 ADA Standards for Accessible Design

The Department of Justice’s scoping and technical accessibility requirements for facilities covered by the ADA.

AccessibilityAnthropometry & ergonomics
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Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.

TECHNICAL CHAPTER 3: BUILDING BLOCKS 306.2 Toe Clearance. 306.2.1 General. Space under an element between the finish floor or ground and 9 inches (230 mm) above the finish floor or ground shall be considered toe clearance and shall comply with 306.2. 306.2.2 Maximum Depth. Toe clearance shall extend 25 inches (635 mm) maximum under an element. 306.2.3 Minimum Required Depth. Where toe clearance is required at an element as part of a clear floor space, the toe clearance shall extend 17 inches (430 mm) minimum under the element. 306.2.4 Additional Clearance. Space extending greater than 6 inches (150 mm) beyond the available knee clearance at 9 inches (230 mm) above the finish floor or ground shall not be considered toe clearance. 306.2.5 Width. Toe clearance shall be 30 inches (760 mm) wide minimum. Figure 306.2 Toe Clearance 306.3 Knee Clearance. 306.3.1 General. Space under an element between 9 inches (230 mm) and 27 inches (685 mm) above the finish floor or ground shall be considered knee clearance and shall comply with 306.3. 306.3.2 Maximum Depth. Knee clearance shall extend 25 inches (635 mm) maximum under an element at 9 inches (230 mm) above the finish floor or ground. 306.3.3 Minimum Required Depth. Where knee clearance is required under an element as part of a clear floor space, the knee clearance shall be 11 inches (280 mm) deep minimum at 9 inches (230 mm) above the finish floor or ground, and 8 inches (205 mm) deep minimum at 27 inches (685 mm) above the finish floor or ground. 110 - 2010 Standards: Titles II and III Department of Jus1ti4c7e Titles II and III - 2010 Standards - 81

Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.