Under-sink dishwashers are 34 inches tall, which makes them close in height to standard dishwashers, which are 35 inches tall. These dishwashers can only be installed under shallow sinks designed to work with them.
Since the height of countertops is standard, most smaller dishwashers save space with smaller widths. Compact dishwashers, for example, are the same height and depth as standard dishwashers but are only 18 inches wide, compared to 24 inches in standard-sized dishwashers. Homeowners who don't have enough room for a dishwasher can consider a countertop dishwasher, which is significantly smaller than even compact dishwashers and capable of being placed on a counter or other surface in the home.