3 Convenient Locations with Gate Access 24 hrs 7 days a week. Large variety of unit sizes. Indoor, Climate Controlled & Outdoor Storage. Save Time- Reserve Online! We will match competitor pricing. Dayton Self Storage, located conveniently near Highway 401 in Scarborough, and Highway 407 in Markham, offers three locations to serve you. With 24 hour access, Dayton Self Storage lets you store your belongings when it is most convenient for you. Dayton Self Storage provides a safe and secure space to store your belongings.