Conventional medicine is the type of medicine that the people who control the medical education system have deemed to be the most appropriate system of medical care. In the United States, conventional medicine consists primarily of drugs and surgery, which are the most widely used treatment modalities.
There are common established heights for table/counter surface and seating combinations. They are: Table height: 30in (750mm), with a chair at 18in (450mm). Counter height: 36in (900mm), with stools at 24 in (600mm). Standard bar height: 42in (1050mm), stools at 30in (750mm).
Therefore a tall bar at 42 height should use a 30 seat height stool. This is generally accepted as standard. * Occasionally some manufacturers will make a 26 stool to try and accommodate a short counter top and a tall bars with the same item. However, it is a better match using the 24 and 30 height for the respective two standard counter and tall barstool heights.