A stackable washer dryer is generally a set of washing and drying machines that is designed to be stacked on top of each other as a space-saving design choice. Stacked washer dryer units can come separately as part of a two-machine set or connected together.
Whether the washer dryer units are separated or connected depends on the orientation of the loading
door. The Bosch compact washer and dryer machine set, for example, is designed so that the machines can be stacked on top of each other and placed in a closet. Alternatively, they can also be installed beside each other in a traditional setup. Another design type involves a connected washer and dryer machine where the dryer has a front loading door while the washer has a top loading door.