They measure between 19 5 and 22 5.
Ada minimum counter depth.
The ada also requires minimum unobstructed areas in front of different counter types.
The counter adjacent to the accessible checkout aisle has a maximum height of 38.
An accessible checkout aisle should provide a minimum of a 36 inch wide access aisle and it should be identified by a sign with the international symbol of accessibility mounted over the aisle.
Knee and toe space complying with 306 shall be provided under the counter.
For more information for information about the ada including the revised 2010 ada regulations please visit the department s website www ada gov.
In this instance the 27 height is effectively an absolute dimension because it is the minimum required for knee clearance and the maximum specified for cane detection.
A linear foot is 12 by 25 inches in this case since the standard counter depth for kitchens is 25 inches.
Bathrooms tend to have smaller and narrower counters especially since people will lean over them to inspect their face regularly.
A portion of the counter surface that is 30 inches 760 mm long minimum and 36 inches 915 mm high maximum shall be provided.
The ada home page provides access to americans with disabilities.
Or for answers to specific questions call the toll free ada information line at 800 514 0301 voice or 800 514 0383 tty.
A clear floor or ground space complying with 305 shall be positioned for a forward approach to the counter.
306 3 3 minimum required depth.
This depth means most people easily reach the back of the counter.
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.
Ada standards for accessible design can be downloaded from www ada.
Most americans with disabilities act ada compliant countertops must be no more than 36 inches from the floor but certain counters can be two inches higher and others can be as low as 34 inches from the floor.