Can I store multiple boats together, and what spacing is recommended?

Storing multiple boats together is a common practice, whether in a private yard, a shared driveway, or a commercial storage facility. It can be a practical way to maximize space and potentially reduce costs. However, doing so safely and effectively requires careful planning around spacing, security, and facility rules. The primary goals are to prevent damage to your vessels, ensure safe access, and comply with any insurance or local regulations.

Key Considerations for Storing Multiple Boats

Before placing boats side-by-side, evaluate these critical factors. Industry guidelines and insurance claims data highlight improper spacing as a leading cause of preventable damage during storage.

Recommended Spacing Between Boats

Adequate spacing is non-negotiable for safety. The exact distance depends on the storage type and boat size.

General Buffer Zone: Maintain a minimum of 3 to 5 feet of clear space between the hulls of any two stored boats. This allows for safe walking access for inspections and provides a buffer to prevent hulls from contacting each other in high winds.
For Trailered Boats on Land: If boats are on trailers, measure from the outermost point of each boat (often a gunwale, outboard motor, or trailer fender). A 4 to 6-foot aisle between rows of trailers is considered a best practice for maneuvering and emergency access.
In a Dry Stack Storage Facility: Professional facilities use precise engineering specifications. The National Fire Protection Association (NFPA) codes influence spacing in commercial buildings to allow for fire department access and equipment movement.
In a Marina Slip or Rack: When boats are stored in the water or on a rack, the marina's dock or rack system dictates the spacing. Never attempt to "double-bunk" boats in a single slip unless the marina's infrastructure is explicitly designed for it.

Security and Access Implications

Storing boats together can create security challenges. A crowded storage area can obscure sight lines, making it harder to monitor individual vessels. Ensure that your storage arrangement does not violate any facility rules regarding access lanes for emergency vehicles. Blocking designated fire lanes is a serious violation and may void your storage agreement or insurance coverage.

Insurance and Liability

Your boat insurance policy may have specific clauses regarding storage. Some policies require notification or have conditions if multiple high-value items are stored at a single location. Crucially, if one boat causes damage to another (e.g., a loose cover flaps and scratches a neighboring hull), determining liability can be complex. Consult your insurer to understand how your coverage applies in a multi-boat storage scenario.

Best Practices for Safe Multi-Boat Storage

Communicate with the Storage Facility: Always get written approval from a commercial facility manager before storing multiple boats. They will inform you of their specific spacing rules, which are based on safety codes and their insurance requirements.
Use Proper Supports and Covers: Each boat should be on a dedicated, well-fitted trailer or proper storage stand. Use tight-fitting, quality covers to minimize wind catch and debris. Secure all covers and loose items to prevent them from damaging adjacent boats.
Plan for Maintenance Access: Arrange boats so you can easily reach every part of each hull for cleaning, winterization checks, or repairs without having to move another vessel.
Consider Environmental Factors: Position boats so prevailing winds do not push them into each other. In outdoor storage, account for snow load and drainage to avoid water pooling between vessels.

Storing multiple boats together is feasible with diligent planning. Prioritize safety and protection by adhering to recommended spacing guidelines, understanding your insurance policy, and following all facility rules. This proactive approach delivers maximum value by safeguarding your significant investments and ensuring a hassle-free storage experience.