9 Waterproof Storage Solutions for Outdoor Cooking Gear for Full-Time RVers

Setting up an outdoor kitchen is one of the greatest joys of full-time RV living, but exposing expensive stoves, cast iron, and utensils to the elements is a recipe for rust and ruin. When space inside a rig is at a premium, outdoor cooking gear must often live in the underbelly, on a bumper rack, or exposed to highway downpours. Investing in the right waterproof storage solutions ensures your culinary setup stays clean, dry, and ready for the next camp meal without cluttering your precious living area.

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Why Outdoor RV Gear Needs Weatherproof Storage

Outdoor cooking gear faces a brutal environment during transit and camp setups. Road grime, driving rain at 65 mph, morning dew, and invading pests can quickly destroy stoves, fuel canisters, and spice kits. Standard plastic storage tubs might keep out a light sprinkle, but they fail utterly against dust intrusion on dirt roads and high-velocity road spray.

Full-time RVers must balance interior comfort with storage efficiency. Keeping greasy griddles and charcoal-scented accessories inside the living space ruins air quality and invites pests. Storing this gear externally in dedicated, weatherproof containers keeps odors outside while protecting your investment from moisture-driven degradation like mold and rust.

Heavy-Duty Trunk – Plano Sportsman Trunk

Bulkier outdoor kitchen essentials like dual-burner propane stoves, bulk propane hoses, and heavy cast-iron Dutch ovens need a high-volume, structural home. A heavy-duty utility trunk acts as the primary basement or bumper garage for these oversized items, keeping them consolidated and shielded from impact.

The Plano Sportsman Trunk stands out because of its high-impact plastic construction, molded grooves for secure tie-down strap integration, and reinforced removable lid. While not fully submersible, its deeply recessed rim and heavy-duty latches deflect direct rainfall and road spray exceptionally well. It offers an unbeatable balance of interior volume and structural strength without adding excessive tongue or bumper weight.

• Capacity options: 56, 68, or 108 quarts
• Best used for: Stoves, cast iron, propane hoses, and bulky prep stations
• Key limitation: Lacks a rubber gasket, meaning it cannot survive submersion or intense horizontal pressure washing

This trunk is perfect for budget-conscious RVers who need to organize heavy, bulky cooking gear in the trailer underbelly or a covered truck bed. It is not the right choice for items that must remain completely dust-proof on an open rear bumper cargo tray during desert transit.

Protective Case – Pelican V200 Medium Vault

Precision cooking instruments, digital meat thermometers, high-end chef’s knives, and portable fuel-monitoring electronics require absolute protection. High-vibration environments like RV underbellies can calibrate-out or shatter delicate gear if it is allowed to bounce around loose in a standard bin.

The Pelican V200 Medium Vault brings military-grade crush protection and weatherproofing to your culinary setup. Built with a high-impact polymer shell and a heavy-duty rubber O-ring seal, it shuts out dust, moisture, and road vibrations entirely. The customizable foam interior allows you to carve out exact nests for fragile items, preventing them from clashing during transit.

• Internal dimensions: 14″ x 10″ x 5.5″
• Best used for: High-end knives, digital scales, electronic thermometers, and ignition tools
• Key limitation: Heavy for its size and offers limited volume for bulky items

This case is ideal for culinary-focused RVers traveling with expensive, fragile prep gear that cannot handle dampness or impact. It is overkill and too restrictive for basic camp plates, spatulas, or pots.

Gear Case – YETI LoadOut GoBox 30 Storage

A mid-sized, highly organized gear case serves as the ultimate “grab-and-go” kitchen workstation. Instead of digging through deep tubs, having a dedicated dry box for spice racks, cooking oils, nested pot sets, and fuel canisters makes daily meal prep seamless.

The YETI LoadOut GoBox 30 is virtually indestructible and features a reliable IP65 waterproof rating, keeping dust and water completely at bay. Its interior layout is a dream for organized cooks, utilizing a removable cargo tray, a divider, and a zippered mesh lid pocket pack. The Defender Material construction ensures it won’t crack or warp even when exposed to intense UV rays on a roof rack or bumper tray.

• External dimensions: 20.4″ x 14.7″ x 11.2″
• Best used for: Spices, fuel canisters, nested cookware, and everyday utensils
• Key limitation: Premium pricing and a heavy dry weight before loading gear

This is the premier choice for full-timers who leave their kitchen box exposed to the elements on an exterior hitch rack or open truck bed and want quick, organized access. It is not recommended for those on a tight budget or with highly constrained weight limits.

Dry Duffel – Earth Pak Waterproof Duffel Bag

Rigid boxes do not always conform to awkward storage bays or odd-shaped trailer hatches. A flexible, heavy-duty dry duffel bag allows you to pack soft kitchen items like tablecloths, aprons, dish towels, and collapsible dishwashing tubs into tight, irregular spaces.

The Earth Pak Waterproof Duffel Bag is constructed from 500D PVC, featuring thermo-welded seams that create a completely impervious barrier to wind and rain. Its roll-top closure and secure buckle system eliminate the vulnerability of traditional zippers, which can fail or leak under pressure. It can sit on an open roof rack or in a damp underbelly bay without a single drop of water seeping through to your dry linens.

• Volume options: 50L or 70L
• Best used for: Kitchen towels, aprons, collapsible wash basins, and dry food storage
• Key limitation: Offers zero impact protection for fragile items like glassware or ceramic plates

This bag is perfect for RVers needing to squeeze soft kitchen goods into irregularly shaped exterior storage compartments or roof baskets. It is not suitable for sharp kitchen tools or heavy, hard-edged ironware that could puncture the PVC fabric over time.

Waterproof Dry Box – Plano Guide Series Case

Small, critical kitchen sundries like matches, lighter fluid, charging cords, extra seals for propane tanks, and small seasoning packets are easily lost in large bins. They require a compact, completely submersible dry box that can keep these essentials bone dry and highly visible.

The Plano Guide Series Case (specifically the 3600 or 3700 size) utilizes a Dri-Loc O-ring seal and three cam-action latches to create an airtight, waterproof shield. Its clear polycarbonate lid allows you to inventory your small kitchen spares instantly without breaking the seal. The interior features a soft, slip-resistant TPR lining that prevents small metal parts or glass vials from sliding and breaking.

• Features: Dri-Loc O-ring seal, cam-action latches, clear polycarbonate construction
• Best used for: Matches, fire starters, spare O-rings, headlamps, and specialized spices
• Key limitation: Extremely small volume, strictly for accessory-level storage

This is an essential add-on for any RVer who wants to safeguard their emergency ignition kits and small kitchen spare parts from humidity. It is useless for bulk cookware or plate sets.

Roof Cargo Box – Yakima RocketBox Pro 11

When your RV’s interior cabinets and basement bays are completely full, you must look upward. A roof-mounted cargo box is the ultimate solution for storing bulky, lightweight, or seasonal outdoor cooking gear like folding tables, portable grills, and charcoal bags out of the main living zones.

The Yakima RocketBox Pro 11 is aerodynamic, lightweight, and designed specifically to fit on shorter roof racks, making it ideal for campervans, overland rigs, and SUV tow vehicles. Its dual-sided opening allows you to access gear from either side of the vehicle, which is crucial when parked in tight campsites. The injection-molded construction is highly weather-resistant, deflecting highway rainstorms and keeping wind-driven road dust away from your cooking gear.

• Dimensions: 89″ x 24″ x 16″ (11 cubic feet of storage)
• Best used for: Foldable camp tables, portable grills, roasting sticks, and charcoal
• Key limitation: Adds vehicle height and requires a roof rack system to mount

This is a stellar choice for campervan owners and trailer towers who need to clear out basement space and don’t mind climbing to access seasonal cooking setups. It is not suitable for heavy cast-iron or heavy propane tanks, which can exceed roof load ratings.

Storage Bin – Rubbermaid ActionPacker 24 Gal

Standard utility bins buckle, crack, and lose their lids under the stress of road travel and heavy loads. A ruggedized, weather-resistant storage bin serves as a reliable middle-tier storage option for mid-weight cooking gear like pots, pans, plates, and propane camp stoves.

The Rubbermaid ActionPacker 24 Gal is a legendary alternative-living staple due to its impact-resistant frame and lockable latches. The rotomolded-style lid design sheds water effectively and is strong enough to double as a camp step or an extra seat around the fire. While not IP-rated for submersion, its overlapping lid design stops rain and dust from entering from above, even when transported on an open trailer tongue.

• Capacity: 24 gallons (8 Gal and 35 Gal sizes also available)
• Best used for: Nested metal pots, plastic plates, cleaning supplies, and camp stoves
• Key limitation: Lacks a rubber gasket, meaning dust can seep in during heavy dirt-road travel

This is the perfect workhorse bin for RVers looking for durable, lockable, and stackable storage for everyday camp kitchen gear in their underbelly or truck bed. It is not recommended for dry food storage in areas prone to determined rodents or persistent, heavy dust storms.

Kitchen Organizer – Kelty Camp Galley Deluxe

Cookware is only half the battle; managing the chaos of spatulas, silverware, cutting boards, spices, and paper towels is where camp kitchen setups usually fall apart. A hanging kitchen organizer keeps all your active prep tools off damp picnic tables and consolidated in one dry, organized space.

The Kelty Camp Galley Deluxe is a masterclass in mobile kitchen organization, featuring dedicated pockets, elastic loops, and a fold-out paper towel holder. The exterior is constructed from rugged, water-resistant fabrics, and the entire unit folds up into a compact zippered carry case. It can hang from your RV’s awning arm, a tree branch, or the side of your rig, keeping your cooking utensils clean and dry during meal prep.

• Features: U-zip opening, hanging attachment points, sleeve pockets, elastic loops
• Best used for: Spatulas, knives, silverware, spices, cutting boards, and paper towels
• Key limitation: Water-resistant but not waterproof; must be packed away inside a sealed bin during heavy storms

This is a must-have for the organized camp chef who wants a dedicated, hanging station for active meal prep. It is not designed to be left outside in the rain or used as long-term external storage.

Heavy-Duty Dry Bag – Sea to Summit Big River

For off-grid RVers who travel deep into rugged terrain via overland rigs or campervans, space is extremely tight, and gear is exposed to extreme elements. A heavy-duty dry bag provides ultra-reliable, abrasion-resistant waterproofing that can be lashed directly to exterior racks, ladders, or bumpers.

The Sea to Summit Big River Dry Bag is built from 420D ripstop nylon with a TPU lamination, making it incredibly tough and resistant to punctures from sharp camp gear. The roll-top closure is paired with heavy-duty lash loops that make it easy to secure to the outside of your rig using cam straps. It offers absolute protection from torrential rain, mud, and fine dust, ensuring your plates and cookware remain sterile during travel.

• Volume options: 5L up to 65L
• Best used for: Nested camp dishes, dry pantry goods, and small cooking accessories
• Key limitation: Flexible walls mean items can shift and clatter against each other during transport

This is ideal for minimalists and overland RVers who need to lash their dry kitchen gear to exterior racks or ladders to save interior space. It is not suitable for fragile items or cooks who prefer structured, easy-access compartments.

Managing Moisture and Condensation in RV Bins

Even the most expensive waterproof box can trap moisture if items are packed away damp. Packing a freshly washed camp stove or slightly wet plates into a sealed, airtight container creates a humid microclimate. This trapped moisture quickly leads to mold, mildew, and rusted metal components over just a few days of storage.

To combat this, always dry cooking gear completely in the open air before locking it away. Placing reusable silica gel packets or a small, rechargeable dehumidifier unit inside your largest kitchen bins will absorb any residual moisture. For bins that store metal cookery, a light coating of food-grade mineral oil on cast iron and carbon steel prevents surface rust if damp air does sneak in.

Additionally, check your storage boxes periodically, especially when transitioning between different climates. Rapid temperature shifts—like moving from a cold desert night to a hot sunny day—can cause condensation to form on the inside walls of sealed plastic bins. Giving your gear a quick airing out during routine travel stops will prevent long-term moisture damage.

Sizing Storage Boxes for Your RV Underbelly

Before purchasing any storage container, you must carefully measure your RV’s pass-through storage bay doors. A common mistake is measuring the interior dimensions of the bay while forgetting that the actual door frame is often several inches smaller. A box that fits perfectly inside the compartment is useless if it cannot pass through the access door.

Weight distribution is another critical factor when loading up your underbelly storage. Heavy items like cast-iron pans and full propane canisters should be stored low and centered, ideally close to the RV axles, to maintain stable towing characteristics. Keep lightweight items, like paper towels and plastic bins, in the harder-to-reach corners or upper shelves of your storage bays.

Finally, consider the height of the bins relative to the clearance of your slide-outs and utility lines inside the bay. Ensure your storage boxes do not pinch water lines, heating ducts, or electrical wiring when slid into place. Utilizing modular, stackable bins of uniform sizing maximizes every cubic inch of your underbelly without creating safety hazards for your rig’s vital systems.

Finding the right balance of waterproof storage for your outdoor kitchen gear elevates the entire RVing experience. By matching your cooking accessories to the correct heavy-duty cases, dry bags, and organizers, you protect your culinary investments from the harshest road conditions. Stay organized, keep the moisture out, and enjoy high-quality meals wherever the road takes you.