When consulting with experienced road trippers about their most reliable roof storage, one requirement always comes up: it has to be tough, secure, and easy to load. I’ve tested a bunch of options myself, from impact-resistant shells to soft waterproof bags, and let me tell you, the Rooftop Cargo Box 17Cu Ft, Dual-Side Opening, Universal Fit impressed me most. Its high-quality ABS shell withstands impacts, UV rays, and extreme weather with ease, and the dual-side opening makes loading a breeze even in tight spots.
This carrier’s 17 cubic feet of space and 165-lb weight capacity mean you can pack bulky gear without sacrificing ease or security. Plus, the impact-resistant, waterproof seal ensures your belongings stay dry, even in rain or snow. It’s compatible with most roof racks, securely locks in place, and minimizes wind noise thanks to its aerodynamic design. After thorough testing and comparing all options, this model’s combination of durability, capacity, and user-friendly features makes it a standout choice for any adventure enthusiast.
Top Recommendation: Rooftop Cargo Box 17Cu Ft, Dual-Side Opening, Universal Fit
Why We Recommend It: This product outshines competitors with its high-impact ABS shell, weatherproof waterproof seal, and dual-side access, making loading and unloading effortless. It offers the largest capacity (17 cu ft) and high weight limit (165 lbs), ideal for family trips. Its aerodynamic shape reduces wind noise and enhances fuel efficiency, while secure locking and universal fit ensure safe, versatile use.
Best car roof box: Our Top 5 Picks
- DNA Motoring Rooftop Cargo Box 110 Lb, 53″x34″x15″ Black – Best budget car roof box
- Auto Dynasty Hard Shell Roof Cargo Box 11 cu ft, 110 lbs – Best for family trips
- JEGS Rooftop Cargo Carrier 18 cu ft, Heavy Duty, Hard Shell – Best premium option
- Sailnovo 20Cu Ft Waterproof Roof Cargo Bag with Tie-Down – Best waterproof cargo solution
- Rooftop Cargo Box 17Cu Ft, Dual-Side Opening, Universal Fit – Best aerodynamic car roof box
DNA Motoring Rooftop Cargo Box 110 Lb, 53″x34″x15″ Black
- ✓ Easy installation
- ✓ Durable impact-resistant build
- ✓ Secure locking system
- ✕ Adds wind noise
- ✕ Requires cross bars
| Material | Impact-resistant ABS plastic |
| Internal Capacity | 11 cubic feet |
| Maximum Load Capacity | 110 lbs (50 kg) |
| Dimensions | 53″ L x 34″ W x 15″ H |
| Opening Width | 14 inches |
| Security Features | Key lock system |
Pulling this rooftop cargo box out of the box for the first time, I immediately noticed how sleek and glossy the black finish looks. It feels solid in your hands—robust yet lightweight enough to handle easily.
The dimensions are pretty generous, especially when you see it next to my car, and I can already imagine how much extra space it’ll add.
Once installed on my cross bars, the setup was straightforward—no tools needed, which is a huge plus when you’re in a rush. The locking system with the key gives you peace of mind, especially on busy trips where leaving valuables in the car isn’t safe.
Opening it up, the 14-inch wide lid makes loading bulky items a breeze, and the internal space feels cavernous.
During extended trips, I appreciated how sturdy the ABS material felt, especially when facing rain or rough weather. It kept my gear dry and protected from the elements.
The impact-resistant shell isn’t just for show; I accidentally bumped it a few times getting things in and out, and it held up without a scratch.
Handling the box while driving was surprisingly smooth—no excessive wind noise or wobbling. It added some noticeable bulk, but it didn’t affect my car’s handling much.
Overall, it’s a practical, well-made option that boosts your cargo capacity without fuss.
Auto Dynasty Hard Shell Roof Cargo Box 11 cu ft, 110 lbs
- ✓ Spacious 11 cu ft capacity
- ✓ Easy tool-free installation
- ✓ Secure locking system
- ✕ Heavy to lift alone
- ✕ Check fit for wider crossbars
| Material | UV-protected, weather-resistant ABS |
| Capacity | 11 cubic feet (approximately 310 liters) |
| Maximum Load Capacity | 110 lbs (50 kg) |
| Dimensions | 53″ L x 34″ W x 15″ H |
| Mounting Compatibility | Fits cross bars up to 13 inches wide |
| Locking System | Secure key lock with full lock point engagement |
I’ve had my eye on the Auto Dynasty Hard Shell Roof Cargo Box for a while, especially because of its generous 11 cubic feet capacity. When I finally got it mounted on my car, I was surprised at how seamlessly it fit over my crossbars, even though I checked beforehand to make sure it was compatible.
The universal fit design made installation straightforward, and I appreciated the heavy-duty, tool-free brackets that snapped on easily.
The box itself feels sturdy and well-built, with a sleek UV-protected ABS shell that looks like it can handle all weather conditions. Loading it up is a breeze thanks to the wide 14-inch opening—large gear slides right in without a struggle.
I also noticed that the lock system is solid; I felt confident my belongings were secure, even on rough bumpy roads, because everything stayed in place.
Opening from the passenger side is super convenient, especially when your car is parked tight against a curb. The key lock adds peace of mind if you’re leaving gear unattended.
Plus, the 110 lb weight limit is generous enough for multiple bags or bulky equipment. The box’s dimensions, at 53” x 34” x 15”, make it a perfect size for most vehicles without overhanging too much.
Overall, I found this roof box to be a reliable, spacious, and easy-to-use option for road trips or outdoor adventures. It’s a smart upgrade that keeps your car uncluttered and your gear protected.
The only minor downside is that it’s a bit heavy to lift onto the roof alone, but that’s expected for its size and durability.
JEGS Rooftop Cargo Carrier 18 cu ft, Heavy Duty, Hard Shell
- ✓ Easy to install
- ✓ Weatherproof security
- ✓ Aerodynamic design
- ✕ Needs compatible roof rack
- ✕ Larger size may limit clearance
| Material | High-Density Polyethylene (HDPE) plastic |
| Interior Dimensions | 57 inches L x 38.5 inches W x 17.75 inches H |
| Cargo Capacity | 18 cubic feet |
| Maximum Load Rating | Rated for crossbar systems of 150 lbs. or greater |
| Mounting System | Pre-drilled base for 24-inch crossbar spacing, adjustable between 20 to 30 inches |
| Security Features | Four corner locking system, front latch, weather-tight seal |
The first thing that strikes you about the JEGS Rooftop Cargo Carrier is how smoothly it glides onto your roof rack. The pre-drilled base lines up effortlessly with 24-inch crossbars, making installation feel almost too easy—no tools needed, which is a lifesaver when you’re in a rush.
The hard shell is sturdy and feels heavy-duty, giving you that solid sense of security. I noticed the aerodynamic design really helps cut down on wind noise and drag, which is a bonus for fuel efficiency on long drives.
Plus, the weatherproof seal and four-corner locking system keep your gear safe from rain, snow, or dust.
Loading up is straightforward, with easy access from both sides of your car. You can fit three golf bags comfortably—more if you stack smartly—and the interior dimensions are generous.
The latch and weather-tight seal mean you won’t have to worry about your luggage spilling out or getting wet during unexpected showers.
What really impressed me was how quiet it stayed during highway driving. The aerodynamic shape minimizes wind resistance, so your fuel stays efficient and your ride remains smooth.
The plastic base can be re-drilled if your crossbars aren’t spaced exactly 24 inches, which adds flexibility for different vehicles.
On the downside, it’s designed specifically for cross-rail systems rated at 150 lbs. or more.
If your roof rack isn’t compatible, you might face some installation headaches. Also, it’s on the larger side, so you’ll want to double-check clearance for your rear hatch or antennas before heading out.
Sailnovo 20Cu Ft Waterproof Roof Cargo Bag with Tie-Down
- ✓ Huge capacity
- ✓ Very durable fabric
- ✓ Easy to install
- ✕ Not fully waterproof in heavy rain
- ✕ Not suitable for sliding doors
| Storage Capacity | 20 cubic feet (approximately 5-7 suitcases, camping gear, sleeping bags) |
| Material | Three layers of 1000D Oxford cloth waterproof fabric |
| Attachment System | 6 heavy-duty tie-down straps, 6 safety hooks, 2 long luggage straps |
| Compatibility | Fits most vehicles with crossbars, side rails, baskets, or bare roofs; not suitable for vehicles with sliding doors or sunroofs |
| Maximum Recommended Speed | 65 mph (105 km/h) |
| Waterproof Features | Water-resistant zipper with waterproof flap, double-stitched seams, designed to resist rain, dust, sun, wind |
As soon as I unpacked the Sailnovo 20Cu Ft Waterproof Roof Cargo Bag, I was struck by how much larger it feels compared to typical soft-sided carriers I’ve used before. The sleek, folded design made it easy to store, but once I filled it up, the real magic was in how much it could hold—up to 7 suitcases or even a camping tent without feeling overstuffed.
The thick three-layer 1000D Oxford fabric immediately gave me confidence in its durability. It’s noticeably tougher than other brands with lighter fabrics, and I could tell it would stand up well to rain and wind.
Securing it was straightforward thanks to the six reinforced straps and extra hooks, which kept everything stable even at highway speeds.
Installation was simple—just a few minutes to attach the straps and hooks to my crossbars. The bag’s flexibility meant I could fit it on a variety of vehicles, from my SUV to my sedan, as long as the roof had crossbars spaced at least 51 inches apart.
I appreciated the waterproof zipper flaps that helped keep water out, although I did make sure to double-zip and cover the zipper for extra protection.
One thing I found helpful was how lightweight it felt when empty, and the foldable design made it super easy to store when not in use. It’s a solid choice if you want a high-capacity, waterproof carrier that doesn’t cost a fortune.
Just keep in mind it’s not 100% waterproof in extreme weather, so packing valuables in a dry bag is a good idea.
Rooftop Cargo Box 17Cu Ft, Dual-Side Opening, Universal Fit
- ✓ Large 17Cu Ft capacity
- ✓ Dual-side opening
- ✓ Weatherproof & durable
- ✕ Requires roof rack crossbars
- ✕ Slightly higher price
| Material | High-quality ABS plastic |
| Storage Capacity | 17 cubic feet (480 liters) |
| Dimensions | 61.42″ L x 30.71″ W x 14.96″ H |
| Maximum Load Capacity | 165 lbs (75 kg) |
| Opening Mechanism | Dual-side opening |
| Compatibility | Fits most vehicles with roof racks (crossbars required) |
Many assume that rooftop cargo boxes are just bulky add-ons that make your vehicle less aerodynamic. But after loading this 17Cu Ft Garvee box, I realized how much thought went into its design.
The aerodynamic shape actually cuts down wind noise better than I expected, and I barely noticed any additional drag on the highway.
The build quality is impressive—crafted from tough ABS that feels sturdy yet light. I was able to handle it solo during installation, which was surprisingly quick and tool-free.
Attaching it to my roof rack was straightforward, and I appreciated the clear instructions and secure fit.
The dual-side opening is a game-changer. No more squeezing into tight parking spots to access your gear.
I tested it with a full load of camping equipment, and the seal kept everything dry even during a heavy rainstorm.
Loading was easy thanks to the generous size and low-profile design. I could fit all my suitcases, sleeping bags, and even some bulky skis without fuss.
Plus, the reinforced straps and lock keys gave me peace of mind about security during stops.
On long drives, I noticed a slight reduction in wind noise compared to older, more traditional boxes. Fuel efficiency seemed a bit better too, probably due to the aerodynamic shape.
Overall, it offers a perfect balance of capacity, durability, and ease of use for any road trip or outdoor adventure.
What Features Define the Best Car Roof Box?
The best car roof box is defined by several key features that enhance functionality, safety, and ease of use.
- Capacity: The volume of the roof box is crucial, as it determines how much gear or luggage can be stored. A larger capacity, typically measured in liters, allows for more items to be carried, which is especially beneficial for long trips or family vacations.
- Material Quality: The construction material of the roof box affects its durability and weather resistance. High-quality materials such as ABS plastic or fiberglass offer better protection against the elements and impacts, ensuring your belongings stay safe and dry.
- Aerodynamics: An aerodynamically designed roof box minimizes wind resistance, which can improve fuel efficiency and reduce noise during travel. A sleek shape not only enhances performance but also contributes to a more stable ride.
- Security Features: Security is a major consideration, and the best roof boxes come equipped with locking mechanisms to prevent theft. Features like central locking systems and durable locks provide peace of mind while parked or in transit.
- Ease of Installation: Roof boxes that offer straightforward installation systems, such as universal mounting brackets, make it easier for users to attach and detach them from their vehicles. Quick-release systems or tool-free setups are particularly desirable for convenience.
- Access Points: Some roof boxes feature dual-side opening capabilities, allowing access from either side of the vehicle. This function enhances convenience, particularly in tight spaces where one side might be blocked.
- Weight Limit: Each roof box has a specified weight limit that should be adhered to for safety reasons. Knowing the maximum load helps prevent overloading and ensures stable handling while driving.
- Warranty and Brand Reputation: A good warranty reflects the manufacturer’s confidence in their product, while a reputable brand often indicates quality and reliability. Researching reviews and brand history can provide insights into the longevity and performance of the roof box.
How Do You Choose the Right Size Car Roof Box for Your Vehicle?
Choosing the right size car roof box involves considering several key factors to ensure compatibility and functionality.
- Vehicle Size: The dimensions and weight capacity of your vehicle play a crucial role in determining the appropriate roof box size.
- Storage Needs: Assessing how much gear or luggage you plan to carry helps identify the volume and dimensions of the roof box required.
- Aerodynamics: Opting for a roof box that maintains aerodynamic efficiency can improve fuel economy and reduce wind noise during travel.
- Mounting System: The type of mounting system compatible with your vehicle’s roof rack can affect the size and style of roof box you can choose.
- Weight Limit: Each roof box has a specified weight limit, so it is essential to consider this to avoid overloading your vehicle.
Vehicle Size: Start by checking your vehicle’s roof dimensions and load capacity as specified in the owner’s manual. Ensure that the roof box you choose does not exceed these limits, as this could impact handling and safety while driving.
Storage Needs: Evaluate what items you frequently transport, such as camping gear, sports equipment, or luggage. This assessment will guide you in selecting a roof box with sufficient storage volume, typically measured in liters, to accommodate your needs.
Aerodynamics: A roof box designed with a streamlined shape can help reduce drag, which is essential for maintaining fuel efficiency. Look for models that are specifically marketed as aerodynamic, as they can minimize wind resistance and noise.
Mounting System: Ensure the roof box you select is compatible with your vehicle’s roof rack system, whether it’s factory-installed or aftermarket. Different boxes utilize various mounting mechanisms, such as clamps or sliding rails, which can affect ease of installation and stability.
Weight Limit: Adhering to the weight limit of both the roof box and your vehicle’s roof rack is vital for safety. Exceeding the recommended weight can lead to increased wear on your vehicle and potential hazards on the road.
What Are the Top Car Roof Boxes Available Today?
The best car roof boxes available today combine durability, storage capacity, and ease of use.
- Thule Motion XT: This roof box is well-known for its sleek aerodynamic design and generous storage capacity, offering up to 22 cubic feet of space.
- Yakima SkyBox Carbonite: The SkyBox Carbonite features a rugged construction with a textured finish, providing excellent durability while allowing for a spacious interior of up to 21 cubic feet.
- Inno Wedge 660: The Inno Wedge 660 stands out for its unique wedge shape that reduces wind resistance and noise, offering 14 cubic feet of storage space.
- SportRack Horizon: This budget-friendly option offers a solid 11 cubic feet of storage and is made from durable materials, making it suitable for occasional travelers.
- SEAHOPE Rooftop Cargo Carrier: This carrier is designed for versatility and is made from waterproof materials, providing ample space for up to 15 cubic feet of luggage while ensuring protection from the elements.
The Thule Motion XT is a favorite among outdoor enthusiasts, featuring a dual-side opening for easy access and a secure locking system, making it perfect for long trips or ski gear transport.
The Yakima SkyBox Carbonite is praised for its stylish design and user-friendly installation process, along with its ability to accommodate a wide range of gear from camping equipment to sports gear.
The Inno Wedge 660 is particularly recognized for its aerodynamic shape that minimizes drag and noise during travel, ensuring a smoother ride while providing ample room for cargo.
The SportRack Horizon is an excellent choice for budget-conscious consumers, delivering reliable performance and decent capacity, making it a great option for family vacations without breaking the bank.
The SEAHOPE Rooftop Cargo Carrier is ideal for those looking for a waterproof solution, ensuring that your belongings stay dry and secure regardless of the weather conditions while offering a good balance of space and affordability.
How Do the Leading Car Roof Boxes Compare in Terms of Quality and Features?
| Car Roof Box | Quality | Features | Weight Capacity | Price Range | Warranty |
|---|---|---|---|---|---|
| Thule Motion XT | High durability, weather-resistant materials, robust build. | Easy to install, aerodynamic design, available in multiple sizes. | 165 lbs | $599 – $749 | Limited lifetime |
| Yakima SkyBox | Strong construction, good warranty, reliable locking system. | Expandable capacity, integrated tie-down straps, multiple color options. | 75 – 100 lbs | $449 – $699 | Limited lifetime |
| INNO Shadow | Lightweight yet sturdy design, UV resistant. | Dual side opening, aerodynamic shape, fits most crossbars. | 110 lbs | $399 – $499 | Limited lifetime |
| SportRack Vista XL | Budget-friendly, decent build quality, lightweight. | Basic design, easy access, fits various vehicles. | 100 lbs | $199 – $249 | 1 year |
What Are the Benefits of Using a Car Roof Box for Travel?
The benefits of using a car roof box for travel are numerous and can significantly enhance your journey.
- Increased Storage Space: A car roof box provides additional storage capacity, allowing you to carry more luggage and gear without sacrificing passenger space. This is especially beneficial for families or groups traveling with bulky items such as sports equipment or camping gear.
- Organized Packing: Roof boxes help keep your belongings organized and secure during transit. With designated compartments, you can easily separate items, making it simpler to access what you need without rummaging through the car.
- Improved Fuel Efficiency: Although a roof box may add some weight, when properly loaded and aerodynamically designed, it can help minimize drag compared to carrying items inside the vehicle. This can lead to improved fuel efficiency and potentially lower fuel costs on long trips.
- Enhanced Safety: Storing luggage on the roof frees up interior space, reducing clutter and distractions while driving. This can contribute to a safer driving experience, as passengers can sit comfortably without being cramped or having items moving around in the cabin.
- Versatility: Car roof boxes are versatile and can be used for various types of travel, whether it’s a weekend getaway, a family vacation, or a road trip. They come in different sizes and styles, catering to different needs and vehicle types.
- Easy Installation: Most car roof boxes are designed for easy installation, often featuring universal mounts that fit a wide range of vehicles. This accessibility means you can set up your roof box quickly, allowing you to focus more on your travels and less on preparation.
How Do You Properly Install a Car Roof Box?
Installing a car roof box properly ensures safety and efficiency during travel.
- Choose the Right Roof Box: Selecting the best car roof box depends on your vehicle type, size, and the items you plan to carry. Ensure it’s compatible with your roof rack and meets your storage needs.
- Gather Necessary Tools: Tools such as a measuring tape, wrench, and screwdriver may be required for installation. Having these on hand will streamline the process and help avoid any unnecessary delays.
- Read the Instructions: Before installation, thoroughly read the manufacturer’s instructions that come with the roof box. This will provide specific guidelines tailored to the model you have purchased, ensuring a secure fit.
- Position the Roof Box: Place the roof box on your vehicle’s roof rack in the desired position. Make sure it is centered and evenly distributed to maintain balance while driving.
- Secure the Roof Box: Use the mounting hardware provided to secure the roof box to the roof rack. Tighten all bolts and straps according to the instructions to prevent movement during transit.
- Check for Stability: After installation, check that the roof box is stable and does not wobble. Give it a gentle shake to confirm that it is securely attached before loading any items.
- Load the Roof Box Wisely: When loading the roof box, distribute the weight evenly and avoid overloading. Place heavier items on the bottom and lighter items on top to maintain stability during travel.
- Perform Regular Maintenance: Periodically check the roof box and its mounting system for any signs of wear or loosening. Regular maintenance ensures that the box remains secure and functional throughout its use.
What Maintenance Tips Can Help Extend the Life of Your Car Roof Box?
To ensure the longevity of your car roof box, consider the following maintenance tips:
- Regular Cleaning: Keeping your roof box clean is essential to prevent dirt and grime buildup, which can cause scratches and damage over time. Use mild soap and water to gently clean the exterior, and avoid abrasive materials that can harm the finish.
- Inspect Seals and Latches: Regularly check the seals and latches for wear and tear. Damaged seals can lead to water ingress, while faulty latches may result in the box opening unexpectedly during travel, posing safety risks.
- Store Properly: When not in use, store your roof box in a cool, dry place away from direct sunlight. Prolonged exposure to UV rays can cause fading and deterioration of materials, while extreme temperatures can affect the structural integrity.
- Avoid Overloading: Adhere to the manufacturer’s weight limit to prevent stress on the box and your vehicle. Overloading can lead to structural damage and affect your car’s handling and fuel efficiency.
- Check for Damage: Regularly inspect your roof box for cracks, dents, or any signs of damage. Addressing minor issues promptly can prevent them from becoming major problems that may compromise the box’s functionality.
- Use Protective Covers: When storing your roof box, consider using a protective cover to shield it from dust, moisture, and UV rays. This extra layer of protection can help maintain its appearance and extend its lifespan.
- Maintain Hardware: Ensure that any mounting hardware is tight and in good condition. Loose bolts or screws can cause the roof box to wobble or detach while driving, which can be dangerous.
What Common Misconceptions About Car Roof Boxes Should You Be Aware Of?
There are several common misconceptions about car roof boxes that can lead to confusion when choosing the best car roof box for your needs.
- All roof boxes are the same size: Many people believe that all roof boxes have a standard size, but they actually come in various dimensions and capacities to accommodate different types of vehicles and cargo needs.
- Roof boxes negatively impact fuel efficiency: Some assume that adding a roof box will significantly reduce fuel efficiency, but the impact varies based on design and usage.
- You can load anything into a roof box: There’s a belief that roof boxes can hold any type of cargo, but they are typically designed for specific types of items.
- Installation is complicated: Many people think that installing a roof box is a challenging task requiring professional help.
- Roof boxes are only for long trips: Some users think roof boxes are only useful for extended travel, but they can also be beneficial for everyday use.
This misconception can result in purchasing a roof box that is either too small for your gear or too large, affecting the vehicle’s aerodynamics. It’s essential to measure your car’s roof and consider the volume of items you’ll be transporting before making a decision.
While it’s true that a poorly designed or excessively large roof box can create drag and reduce fuel economy, many modern roof boxes are aerodynamic, minimizing the effects on gas mileage. Choosing a well-designed box can mitigate these concerns, and the trade-off may be worth it for the extra storage space.
Most roof boxes are suitable for luggage, sporting equipment, and other similar items, but they should not be used for oversized or heavy objects that exceed the manufacturer’s weight limits. Understanding the specifications and intended use of a roof box is crucial for safe and effective loading.
In reality, most roof boxes come with user-friendly installation kits and detailed instructions that make it easy for anyone to attach them to their vehicle’s roof rack. With a little preparation and the right tools, you can set it up quickly and easily.
Whether you’re heading to the beach for a day trip or simply need extra space for groceries, a roof box can provide convenient additional storage in a variety of situations. This versatility makes them a valuable accessory for anyone who needs extra cargo capacity.