Counter stools have a seating height of 24 inches tall at the seat. This is the perfect height for a 36 inch tall counter table. Counter height at 36 inches is the same height as your sink and stove hence the name counter height. The rule of thumb on seating is the rule of 12. You want to have twelve inches from the top of your seating surface to the top of your eating surface. You can vary this an inch or so in either direction but try to stay true to the 12 inch rule.