DNA Motoring Rooftop Cargo Box Carrier
Our rooftop cargo box carrier transforms every road trip, family vacation, and weekend adventure by adding up to 16 cubic feet of secure, weatherproof storage above your vehicle. Engineered from impact-resistant ABS plastic with reinforced mounting points, this carrier attaches to any standard crossbar roof rack in minutes using our universal U-bolt system.
Whether you’re hauling camping gear, ski equipment, or luggage for the entire family, the dual-side opening design makes loading and unloading effortless from either side of your vehicle. We’ve designed every detail for real-world use — from the integrated lock cylinders that protect your cargo to the low-profile aerodynamic shell that minimizes wind noise and maximizes fuel efficiency on the highway.
Key cargo box specifications
Construction & Weather Protection
We manufacture the DNA Motoring rooftop cargo box carrier from high-grade ABS plastic with UV-resistant coating that prevents fading and brittleness through years of sun exposure. The material flexes slightly under impact without cracking, protecting your cargo even when branches scrape overhead or hail strikes during unexpected storms.
The lid seals completely with a rubber gasket around the entire perimeter, creating a waterproof barrier that keeps rain, snow, and road spray away from your belongings. Every corner features reinforced ribbing that adds structural rigidity without unnecessary weight. The black textured finish resists scratches and blends seamlessly with most vehicle colors.
Universal Mounting System
The dna motoring rooftop cargo box carrier installs on any factory or aftermarket roof rack with crossbars spaced 22 to 39 inches apart. Our adjustable U-bolt hardware accommodates round, square, and aero-style crossbars up to 3.25 inches wide without requiring additional adapters.
Installation Process
Position the carrier centered on your crossbars, then hand-tighten the four U-bolts through the mounting channels on the underside. Each bolt threads into a reinforced steel plate embedded in the carrier floor, distributing load stress across a wider area than competing designs that use simple plastic anchors.
Storage Capacity & Interior Organization
With 16 cubic feet of interior volume, this cargo box swallows four full-size suitcases, a week’s worth of camping gear for two adults, or six pairs of skis with poles. The flat floor spans 58 inches long inside, accommodating sleeping bags, tents, and fishing rods that won’t fit in your trunk.
We’ve molded raised ridges along the bottom that prevent cargo from sliding during acceleration and braking. Soft items like jackets and sleeping bags compress to maximize space, while the box height handles bulkier equipment like helmets and boots without forcing awkward angles.
Complete Your Roof Storage System
Rated 4.8 by verified buyers
Your Rooftop Cargo Box Questions Answered
Our cargo box accommodates any standard roof rack with crossbars spaced between 22 and 39 inches apart. The adjustable U-bolt mounting system fits round bars up to 3 inches in diameter, square bars up to 3 inches wide, and aero-style bars up to 3.25 inches across.
The mounting hardware included with your carrier works with factory-installed roof racks on most SUVs, crossovers, and sedans, as well as aftermarket rack systems from major brands. You don’t need adapters or additional hardware for installation.
The DNA Motoring rooftop cargo box carrier has a maximum weight capacity of 165 pounds. However, you must also check your vehicle’s dynamic roof load rating, which is typically between 100 and 200 pounds depending on the make and model.
Always use the lower of the two ratings when loading cargo. The carrier itself weighs approximately 50 pounds empty, so subtract that from your vehicle’s roof limit to determine safe cargo weight. Consult your vehicle owner’s manual for the exact dynamic roof load specification.
Yes, our dna motoring rooftop cargo box carrier features a continuous rubber gasket seal around the entire lid perimeter that creates a waterproof barrier. The carrier undergoes pressure testing to ensure it remains leak-free at highway speeds in severe weather conditions.
The dual-side locking latches compress the gasket evenly when closed, preventing water intrusion through gaps. Molded drain channels in the bottom pan direct any condensation toward the rear, keeping the interior dry even during multi-day trips through rain and snow.
Absolutely — the dual-side opening design lets you access your cargo from either the driver’s side or passenger’s side, depending on where you’re parked. Each lid operates independently with its own latch and lock, and both prop open with integrated stay arms that hold the lid in place while you load or unload.
This feature is especially useful in tight parking spaces, busy parking lots, or when you’re parked on a slope and one side is easier to reach than the other.
The integrated lock cylinders on both sides of the carrier secure your cargo when the lids are closed. The same locks also thread through the mounting U-bolts to secure the entire unit to your roof rack crossbars, deterring theft of the box itself.
We include two keys with every cargo box — keep one on your keychain and store the backup in a safe location. The reinforced metal strike plates resist forced entry better than plastic-only latches. Always engage both locks when leaving your vehicle unattended.
The DNA Motoring rooftop cargo box adds 16 inches of height to your vehicle’s roofline. Measure the distance from the top of your vehicle to your garage ceiling before installing to ensure adequate clearance.
If your garage has limited height, you can remove the cargo box in just a few minutes by loosening the four U-bolts with the included wrench. Many customers remove their carriers between trips and store them in the garage or basement to maintain full vehicle clearance for daily parking.
Hard-shell cargo boxes like ours offer superior weather protection, security, and aerodynamics compared to soft cargo bags. The rigid ABS plastic construction provides complete waterproofing with a gasket seal, while soft bags may develop leaks at seams over time.
The integrated locks protect your belongings from theft — something soft bags can’t offer. Our low-profile aerodynamic shape also reduces wind noise and drag more effectively than fabric bags that flap in the wind. However, soft bags are typically less expensive and easier to store when empty since they fold flat.