A 10’x10′ self storage unit can hold the contents of a two bedroom apartment. It is about the space of a large family room, or two extra bedrooms. This space is large enough for many items: a mattress set, bookcases, tables and dressers, sofas and appliances could fit in this space. A ten by ten unit could also hold the contents of an entire office, including desks, chairs, files, and storage boxes. Keep your things safe, secure, and clean with Extra Space Storage.