What are the biggest sizes of stackable washers and dryers?

The biggest size of stackable washers and dryers are full-size units. These are freestanding units that may be stacked on top of one another or used side by side. Full-size units may reach up to 80 inches in height and span a width of up to 27 inches.

Freestanding stackable washer and dryer units are larger than stacked, connected laundry units. Freestanding washers have capacities of 3.5 to 4.5 cubic feet and freestanding dryers have capacities of 3.5 to 6 cubic feet. Connected laundry units include washers with a capacity ranging from 1.5 to 3 cubic feet and dryers with capacities of up to 3.5 cubic feet.