Speed Queen’s stack dryer the same great features as the single load dryer. Two commercial dryers in the space of one, both operating independently, including independent controls for optimum usage. Defined by its simplicity and its performance, Speed Queen provides everything you need to get the job done - and nothing you don’t. Speed Queen’s stack dryer combines heavy-duty construction with reliable operation proven to stand the test of time. They’re designed with less moving parts for one reason: so you’ll face fewer maintenance problems and less wear and tear down the road. Speed Queen’s dryers provide the balance of heat, airflow and tumble action for optimal performance and efficiency. Bottom dryer is ADA compliant.