Can I store my boat in a self-storage unit, and what size do I need?

Storing a boat in a self-storage unit is a common and viable option for many owners, offering a balance of security, accessibility, and cost. However, it is not a one-size-fits-all solution and requires careful consideration of your vessel's specifications, the facility's rules, and your own operational needs. The primary factors determining suitability are the boat's size, type, and whether it will be stored on a trailer.

Understanding Self-Storage Unit Types and Sizes

Self-storage facilities typically offer two main types of units relevant to boat owners: standard drive-up units and larger, often uncovered, outdoor storage spaces sometimes called "RV & Boat" spots. For a boat on a trailer, you will need to calculate the total length, width, and height of the entire rig.

Industry data indicates that a common 20-foot bowrider on a trailer can require a storage space over 25 feet long when accounting for the trailer tongue and motor. Width is also critical, as many boats have beams exceeding 8 feet, which is the standard width of many indoor units.

General Size Guidelines

• Small Boats & Personal Watercraft: A 10'x20' or 10'x25' unit can often accommodate a small fishing boat, dinghy, or multiple personal watercraft (PWCs) on trailers.
• Mid-Size Runabouts & Bowriders (18-22 ft): These commonly require a 10'x30' unit. Verify the door height, as many indoor units have standard 8-10 foot roll-up doors that may not clear a boat with a tall windshield or T-top.
• Larger Boats (over 24 ft): Most standard indoor units are impractical. For these vessels, you would typically need a dedicated outdoor, paved storage space at the facility designed for boats and RVs, which are rented by the foot of length.

Critical Considerations Before Storing

Choosing the right size is just the first step. Several other practical and safety factors must be addressed.

1. Facility Rules & Restrictions: Always contact the storage facility directly. Many prohibit the storage of vehicles with fuel, oil, or batteries. You will likely need to winterize the engine and drain all water systems. Some facilities have strict policies against any maintenance work on the premises.
2. Access & Convenience: An outdoor storage spot is easiest for frequent use. An indoor unit provides better protection but requires careful maneuvering in and out, often during limited access hours. Ensure the facility's drive aisles can accommodate your vehicle and trailer for turning.
3. Security: Look for facilities with gated access, good lighting, and surveillance cameras. An indoor unit offers an added layer of physical security from the elements and potential tampering.
4. Insurance: Your boat insurance policy may have specific requirements for storage, such as the type of lock required or periodic checks. Notify your insurer of the storage location. The storage facility's insurance will not cover your boat; it only covers the building and its liability.
5. Preparation is Key: Properly winterize and clean your boat before storage. Remove all valuables, electronics, and safety gear. Ensure the battery is disconnected and stored separately, and the fuel system is stabilized.

Making the Final Decision

To determine if self-storage is right for you, start by taking precise measurements of your boat and trailer. Then, call several local facilities to inquire about available unit sizes, door dimensions, specific prohibitions, and costs. Compare this with the offerings and pricing of dedicated boat storage yards or marinas with dry stack storage.

For many owners of trailerable boats under 25 feet, a climate-controlled or standard indoor self-storage unit can provide excellent protection and security. For larger vessels, a dedicated outdoor boat storage lot is often the more practical and accessible choice. Always prioritize a facility that understands vehicle storage and has clear, written policies to ensure your valuable asset is stored safely and legally.