Accessibility Standards - “Building Blocks” - A Refresher

Thursday, October 2, 2014


In this session, we will provide an in-depth review of the criteria for ground and floor surfaces, turning spaces, clear floor and ground spaces, knee and toe clearances, protruding objects, reach ranges, and operable parts. Special attention will be given to how these criteria affect the usability of an element or space using illustrations from the Board’s new “Guide to the Standards”. Attendees are encouraged to review the previous session on this topic ( ) and submit questions in advance for this discussion.

Multimedia Archives

NOTE: No credit is available for reviewing the recorded session.


Bill Botten Training and Technical Assistance Coordinator, Senior Accessibility Specialist, Office of Technical and Information Services , U.S. Access Board

Dave Yanchulis Director of the Office of Technical and Information Services, U.S. Access Board