(920) 421-8036

Store in the Door!


Northern Door Storage offers secure, premium self-storage units at a convenient location in Door County just off Hwy. 57 in Sister Bay - just minutes from Fish Creek, Baileys Harbor, Ellison Bay and Ephraim.


Wide Variety of Self-Storage Unit Sizes

Our professional and well-maintained storage facility offers affordable self-storage units available for monthly rental or long-term leasing. We offer mini-storage units as small as 5’ x 10’ and storage rooms as large as 12’ x 35’. For larger vehicles our facility features a massive group temperature-controlled building as well as outdoor storage areas.

We know storage needs vary by season and by customer, and that’s why our facility features storage options for household items, boats, vehicles, and more. All self-storage units include 24-hour access, well-lit areas, and peace of mind that your belongings are safe.

Boat Storage

Our indoor extra-large boat storage buildings will protect your fishing boat, Jet Ski, sailboat, or yacht during the cold fall and winter seasons. Temperature controlled options available for the ultimate convenience in winter boat storage.

RV & Camper Storage

Parking your RV or camper at home may not be an option due to city ordinances, and neighborhood rules, or lack of space. Our RV storage spaces offer a solution to protect your RV when you’re not enjoying it. Heated indoor storage is a great way to keep your RV ready to hit the road whenever you are. Reserve your spot today!

Mini Self-Storage

Moving, remodeling, or looking to find additional space in your home? Would you like to actually park your car in the garage this winter? Stash your unused seasonal items, patio furniture, household décor, recreational equipment, and miscellaneous articles in one of our mini self-storage units.

Car & Vehicle Storage

Northern Door Storage is the extra garage you never had! Choose from standard indoor, heated, and outdoor storage facilities – all are available for short or long-term rental. We offer sizes for cars, trucks and motorcycles.

About Us

Northern Door Storage, previously called North Bay Storage, is under new management. Come check out the improvements we're making to provide you the best storage in Door County!


Contact us today to reserve a unit!
(920) 421-8036