RV, Boat, and Trailer Storage: Seasonal Vehicle Storage Guide

The Scale Problem

Storage for RVs and boats is a different category than car storage — physically, logistically, and in terms of the stakes. A 40-foot RV or 30-foot boat represents a $50,000–$500,000 investment. The cost of poor storage can be severe.

Outdoor Storage for RVs and Boats

Outdoor storage is more common for large recreational vehicles because indoor storage at the right size is expensive or unavailable. If outdoor is your only option:

• Invest in a proper RV cover or boat cover — breathable, UV-rated, sized correctly
• Clean the roof thoroughly before covering — dirt holds moisture against the surface
• Apply UV protectant to all rubber seals and exterior trim
• Use tire covers to protect from UV and ozone cracking
• For boats: support the bimini and sail covers properly to prevent water pooling
• Chock all tires and use leveling blocks
• Secure all hatches and compartments — wind can work them open

Indoor Storage for RVs and Boats

Indoor storage for large vehicles typically means a clear-span warehouse or a dedicated RV/boat storage building. These can be climate controlled or not. For boats stored in humid climates, climate control prevents mold and mildew inside the cabin. For RVs, non-climate-controlled indoor is usually sufficient if the space is dry.

Average costs: Outdoor paved lot: $75–$200/month. Indoor non-climate controlled: $175–$400/month. Indoor climate controlled: $300–$700/month for RVs up to 45 feet.

Winterization: The Non-Negotiable Step

For RVs

• Winterize the plumbing — drain freshwater tank, hot water heater, and all lines, or use antifreeze
• Add fuel stabilizer to the gasoline tank and run the generator and engine briefly to circulate it
• Battery: remove and store inside on a tender, or use a battery management system
• Appliances: clean the refrigerator, leave doors propped open with a fridge locker or wood block to prevent mold
• Sealants: inspect all roof seams, windows, and door seals — re-seal any cracks before winter

For Boats

• Engine winterization: change oil, fog the engine, treat fuel, circulate antifreeze through the raw water system
• Battery: remove and store inside on a tender
• Water systems: drain completely or winterize with antifreeze
• Hull: clean thoroughly before storage — marine growth accelerates gel coat deterioration
• Sails and canvas: remove, clean, and store in a dry location
• For sailboats: support the mast properly if left in the water, or remove and store

Security for Large Vehicle Storage

RVs and boats are common theft targets. Look for facilities with: 24/7 video surveillance with recorded retention, controlled access (keypad or tag), perimeter fencing, on-site staff or night patrol, and motion-activated lighting. Consider additional security: wheel locks on boats on trailers, GPS trackers inside the vehicle, and alarm systems.

What to Look for in an RV or Boat Storage Facility

• Drive-up access with enough turning radius for your vehicle's length
• Concrete (not gravel) pads for boats on trailers
• Electrical hookup availability if you want battery maintenance access
• Dump station access for RVs (black/gray water management)
• Covered wash bay or nearby facility for post-season cleaning
• Wide drive aisles — tight spaces mean contact damage risk for large vehicles