6 Best Mounting Adapters For Aftermarket Storage For Vans

Van life creates an inevitable friction between the desire for gear and the reality of limited square footage. Securing heavy equipment to a moving vehicle requires more than just luck and bungees; it demands engineering-grade hardware capable of withstanding constant vibration and high-speed wind loads. Proper mounting systems transform an cluttered interior into an organized, adventure-ready machine.

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Owl Vans Sherpa Plate: Best for Side Mounting

The Owl Vans Sherpa plate serves as the definitive solution for those needing to reclaim interior floor space by utilizing the van’s exterior rear-door skin. By providing a rugged, perforated mounting surface, it allows for the attachment of storage boxes, fuel cans, and recovery boards without interfering with the door’s structural integrity or hinges.

This system is engineered specifically for high-frequency off-road use, where door-mounted accessories are subjected to immense G-force stress. The plate’s design ensures that the load is distributed evenly, preventing the thin metal of van doors from buckling or fatiguing over time. It is an essential upgrade for any build requiring a dedicated external “mudroom” for dirty or bulky equipment.

If the goal is a sleek, factory-integrated look that survives thousands of miles of washboard roads, the Sherpa plate is the clear winner. It removes the guesswork from door mounting and offers a high-strength backbone for modular accessories. Choose this if the primary objective is maximizing exterior storage capacity without compromising the vehicle’s aesthetic.

L-Track Systems: The Most Versatile Solution

L-Track, also known as logistic track, represents the gold standard for interior cargo management due to its infinite adjustability. By installing these aluminum channels along floors, walls, or ceilings, users gain the ability to click in heavy-duty fittings exactly where needed. It is the ultimate system for those who frequently swap gear or need to secure heavy loads like mountain bikes or motorcycles.

The beauty of L-Track lies in its ecosystem of studs, rings, and specialized brackets. Because the hardware locks securely into place, shifting cargo becomes a non-issue during transit. It is far superior to fixed anchor points, which often create dead space when the specific gear they were designed for isn’t in use.

For builders who view their van as a multi-purpose tool—part camper, part cargo hauler—L-Track is the only sensible choice. It offers enough flexibility to change the interior layout on a whim while providing enough strength for true utility. If modularity ranks as the top priority, stop searching and start installing L-Track.

Front Runner Brackets: For Easy Rack Integration

Front Runner’s Slimline II rack system is the industry leader for those who treat their roof as a secondary deck. Their mounting brackets are specifically designed to interface with the van’s existing factory mounting points or heavy-duty track systems, providing a stable foundation for everything from kayaks to solar panels.

What sets these brackets apart is the T-slot design, which allows for the rapid attachment and repositioning of accessories. Unlike permanent bolt-on mounts, Front Runner’s hardware allows for easy removal or adjustment of gear as travel needs shift between seasons. The build quality is consistent with high-end overland expectations, featuring robust powder coating and stainless steel fasteners.

These brackets are ideal for the van owner who prioritizes a “set it and forget it” roof setup. They are purpose-built for the Front Runner ecosystem, making them a natural choice for those already invested in that brand’s extensive accessory list. If a reliable, rack-based storage solution is required, these brackets provide the necessary confidence for long-term travel.

ROAM Rugged Mounts: For Securing Hard Cases

Storing gear in hard cases is common, but keeping those cases attached to a roof rack is a frequent point of failure. ROAM Rugged Mounts solve this by providing a dedicated, heavy-duty interface between the case and the rack crossbars. They eliminate the need for complicated strap configurations that eventually stretch or fail under tension.

These mounts are designed specifically for the weight and dimensions of rotomolded storage containers. They bolt directly through the bottom of the case and clamp firmly to the rack, creating a single, inseparable unit. The added security of knowing a high-value storage box cannot slide off or vibrate loose is worth the price of admission.

If a van build includes ROAM or similar hard-shell storage cases, these mounts are essential. They simplify the mounting process and provide a level of security that generic hardware cannot match. Use these for peace of mind, especially when traversing rough terrain where loose heavy gear becomes a projectile hazard.

Rigd UltraSwing: Best Hitch-Mounted System

When the interior is full and the roof is already cluttered, the hitch remains the final frontier for storage. The Rigd UltraSwing is a premium, swing-away hitch carrier that allows for the mounting of storage boxes, bike racks, and spare tires while maintaining full access to the rear doors. It effectively expands the footprint of the van without adding a single inch to the vehicle’s height.

This system is built like a tank, capable of handling significant weight without swaying or rattling. The swing-away action is smooth, allowing for rapid access to the back of the van, which is crucial for quick stops. It essentially transforms the rear hitch into a high-capacity, multi-functional gear porch.

The UltraSwing is the best investment for those who struggle with the physical height limit of their van or those who simply refuse to hoist heavy gear onto the roof. It is a heavy-duty, permanent upgrade that shifts weight toward the rear of the vehicle, which can be a distinct advantage for weight distribution. If the rear door is a high-traffic area, this is the most practical storage expansion available.

80/20 Extruded Aluminum: Best for DIY Builders

80/20 extruded aluminum is the bedrock of the custom van build industry. It functions like a grown-up version of an erector set, using slotted aluminum profiles that can be cut to size and connected with T-nuts and corner brackets. It allows for the creation of completely custom storage racks, internal shelving, and bed platforms.

Because 80/20 is modular, it is the most forgiving material for DIY builders. If a shelf is built at the wrong height, it can be dismantled and reconfigured in minutes without drilling new holes in the van body. This versatility is unmatched, making it the preferred material for those who want to build a truly custom, optimized interior.

For the builder who prefers a custom design over off-the-shelf accessories, 80/20 is the definitive choice. While it requires a steeper learning curve to design and assemble, the resulting build is stronger and more efficient than wood. Invest in a good T-slot cutter and a solid plan, and this system will outperform almost any other storage solution.

Choosing Your System: L-Track MOLLE or 80/20?

Selecting the right mounting foundation often comes down to the desired permanence of the build. L-Track excels in versatility for floor and wall cargo, allowing for rapid changes in gear configuration. Conversely, 80/20 is better suited for permanent interior cabinetry, bed platforms, and rigid structural racks.

MOLLE panels offer a third, lightweight alternative for vertical storage. They are ideal for quick-access items like bags, tools, or light recovery gear, but they lack the structural load capacity of L-Track or 80/20. Many successful builds combine all three, using 80/20 for the heavy frame, L-Track for tie-downs, and MOLLE panels for organization.

Start by mapping out what needs to be stored and how often those items will be accessed. If the gear set is static, go with 80/20. If the gear set changes with the destination, prioritize L-Track and MOLLE. Remember that weight capacity is the primary constraint; never mix lightweight mounting methods with heavy equipment.

Calculating Your Van’s Total Roof Load Limit

A roof storage setup is only as safe as the vehicle’s static and dynamic load limits. Manufacturers assign a specific maximum roof load to every van, and exceeding this can lead to unstable handling, increased risk of rollovers, and even permanent damage to the roof pillars. Note that static load (while parked) is usually significantly higher than dynamic load (while driving).

Calculate the total weight by adding the mass of the rack itself, the mounts, the storage containers, and all the gear inside. It is easy to underestimate the weight of “small items” like recovery boards, fuel cans, and spare parts. Use a bathroom scale to get an accurate reading on every piece of gear added to the roof.

Prioritize weight placement by keeping the heaviest items as low as possible and centered over the wheelbase. Distributing the load evenly across the entire rack system prevents “oil canning” of the roof skin. If the calculations come close to the manufacturer’s limit, err on the side of caution; a lighter setup is always a safer, more fuel-efficient setup.

Installation Basics: Drilling Sealing and Rust

The most critical step in mounting gear to a van body is ensuring that every hole drilled is properly sealed. Bare metal exposed by a drill bit will begin to rust almost immediately, leading to long-term structural degradation. Always use a high-quality primer on the raw edge of any drilled hole before installing fasteners.

Use butyl tape or a marine-grade sealant like Sikaflex for every mounting point that penetrates the van’s skin. These products create a watertight gasket that prevents water ingress, which is the leading cause of interior moisture issues. Simply bolting a bracket through the metal without a proper seal is a guaranteed path to leaks and rot.

When choosing fasteners, always select stainless steel hardware to prevent galvanic corrosion between the bolt and the van’s body panels. Use a thread-locking compound on bolts that will be subjected to constant vibration to prevent them from loosening over time. Quality hardware is the cheapest insurance policy against a high-speed equipment failure.

Securing Your Gear: Locks Tethers and Tips

Mounting equipment is only half the battle; keeping that equipment safe from theft and accidental release is equally important. When mounting items to the exterior of the van, utilize locking knobs or cable locks to deter casual theft. While a determined thief can bypass most locks, making the process time-consuming is often enough to save the gear.

For high-speed transit, use secondary tethers or nylon webbing straps even if the gear is hard-mounted. These act as a safety net in the event of a primary bracket failure. Always check these connections after the first few miles of a trip, as new mounts often settle or shift under initial tension.

Lastly, consider the aerodynamic impact of mounted gear. Wind resistance doesn’t just lower fuel economy; it creates immense lift and drag forces on the mounts themselves. Position long items like shovels or recovery boards horizontally and as flush to the vehicle as possible to reduce noise and strain.

Proper storage management is the difference between a van that feels like a chaotic box and one that functions as a professional-grade mobile habitat. By selecting the right hardware for the task and installing it with attention to structural longevity, gear becomes a seamless part of the journey rather than a hindrance to it. Take the time to engineer the system correctly, and the road ahead will be much smoother.