Workplace Design Principles

A starting point for an evidenced-based design process

Universal Bathroom Design: Lavatory(Sink) Clearances January 21, 2009

Filed under: Bathroom Design — ia2studio @ 2:35 am

The following clearances are designated according to ADA Accessibility guidelines.  The ADA guidelines should be taken into consideration when designing a public restroom that is universally accessible.  Each guideline is enforced in order to secure a safe and functional environment for those using some sort of physical aid, such as a wheelchair.  The clearance below the sink and between the edge of the sink and the wall allows a person to pull his/her wheelchair safely underneath while still allowing them to be close enough to use the controls.

  • knee clearance(from the edge of the sink): 8in minimum
  • toe clearance: 6in maximum
  • total space from the edge of the sink to the wall: 17in minimum
  • bottom of the sink bowl: 27in minimum from floor
  • bottom edge of counter: 29in minimum from floor
  • top edge of counter: 34in max from floor
  • piping: 9in minimum from floor       (“Lavatories and Mirrors” 53)

Source: US Architectural and Transportation Barriers Compliance Board, “Lavatories and Mirros.”ADA Accessibility Guidelines for Buildings and Facilities. Appendix A, Part 1191. 1991.

Posted by: Natalie Kosnik

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