Affordable commercial self storage unit rentals in Garden City, New Rochelle NY. Shop storage room for Rent for your business. Reserve Now for Extra Space! Storage Quarters is Long Island’s leading document management and self-storage facility. We have limited availability for select large-capacity self-storage units in addition to our smaller units so call today and reserve your self-storage unit. Storage units in Brooklyn cater to a variety of needs, from individuals moving homes to businesses seeking extra space for inventory.