The interior clearance indicates the height of the opening and tells you the tallest piece kitchen item that can go into it. Since there are upper spray arms, items that are too tall will stop the sprayers from spinning.

Door-type dishwashers come preconfigured for straight-through (left to right or right to left) operation. However, some units can be configured to go in the corner. For corner configuration, the door and handle positions are switched so racks can pass through the “front” of the unit and one of its sides.