If you’re short on cargo space, a car roof cargo box can dramatically expand your vehicle’s storage capacity for trips, camping, or moving. The best overall pick is the GarveeTech Rooftop Cargo Box Carrier, offering a sturdy waterproof shell and a generous 165 lbs capacity. For budget-conscious shoppers, the Sailnovo Rooftop Cargo Carrier Roof Bag provides ample storage at a lower price point, while the Yakima SkyBox NX offers premium security and sleek design for frequent travelers. The main tradeoffs in this category boil down to balancing capacity, ease of installation, weather resistance, and cost. Keep reading to see how each option stacks up and which one fits your specific needs.
Get the latest gadgets delivered free with Prime
- Fast, free delivery on millions of items
- Prime Video, Amazon Music and more included
- Member-only deals all year
Complete the kit
Key Takeaways
- Top picks vary mainly by capacity, with larger boxes suited for extended trips and smaller ones for quick getaways.
- Dual-side opening models significantly improve ease of access, especially on taller vehicles or tight parking spots.
- Weatherproofing is a common feature, but the level of waterproofing can differ, impacting gear protection.
- Build quality and security features like locks are crucial for long-term durability and theft deterrence.
- Price ranges can be wide; understanding the tradeoff between cost and features helps narrow choices effectively.
| GarveeTech Rooftop Cargo Box Carrier, 165 LBS Capacity, Dual-Side Opening, Waterproof Hard Shell, Universal Fit, Black | ![]() | Best Overall Hard Shell Cargo Box | Material: ABS plastic | Capacity: 12 cubic feet (340 L) | Weight Capacity: 165 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cuft, Fits Most Cars with/Without Rack | ![]() | Best Budget-Friendly Soft Roof Bag | Capacity: 20 cubic feet | Dimensions: 51” (L) x 39” (W) x 17” (H) | Material: 1000D Oxford cloth | VIEW ON AMAZON | See Our Full Breakdown |
| Car Roof Bag Waterproof Rooftop Cargo Carrier 21 Cubic Feet | ![]() | Best for Extra Security with Locking Features | Capacity: 21 cubic feet | Dimensions: 47″ (L) x 35″ (W) x 22″ (H) | Material: 800D PVC tarpaulin | VIEW ON AMAZON | See Our Full Breakdown |
| MIDABAO 20 Cubic Waterproof Car Roof Top Carrier – Cargo Roof Bag with Anti Slip Mat and Racks | ![]() | Best Versatile Malleable Roof Carrier | Capacity: 20 cubic feet | Dimensions: 51.1” x 39” x 17” | Material: PVC | VIEW ON AMAZON | See Our Full Breakdown |
| WORKPRO Rooftop Cargo Carrier Bag, 21 Cubic Feet Waterproof Car Roof Bag | ![]() | Best for Long-Term Use and Safety Features | Capacity: 21 cubic feet | Dimensions: 52″x40″x17″ | Material: 840D PVC | VIEW ON AMAZON | See Our Full Breakdown |
| Hard Shell Roof Top Cargo Carrier Waterproof Travel Luggage Box | ![]() | Best Budget-Friendly Hard Shell Cargo Box | Material: ABS plastic | Capacity: 110 lbs | Dimensions: 53 x 34 x 15 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Yakima SkyBox NX 18 XLG Rooftop Cargo Carrier, 18 Cu Ft, SKS Lock, Black | ![]() | Best for Large Capacity and Dual-Side Access | Capacity: 18 Cu Ft | Fits skis up to: 195cm | Locking System: SKS Locks | VIEW ON AMAZON | See Our Full Breakdown |
| 12 Cubic Rooftop Cargo Box Carrier, Dual-Side Opening Hard-Shell Vehicle Roof Mount Travel Luggage Storage, 135Lbs Capacity | ![]() | Best Aerodynamic Design and Easy Access | Capacity: 12 cubic feet (340L) | Dimensions: 54.3″L x 31.5″W x 13.4″H | Weight Capacity: 135 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Garvee Heavy Duty Hard Shell Roof Top Cargo Carrier – 69″ x 33″ x 11″ Waterproof Lockable Storage Box, 17 Cu Ft, 165 Lb Capacity | ![]() | Best for Heavy Duty and Larger Loads | Dimensions: 69″ L x 33″ W x 11″ H | Capacity: 17 Cu Ft | Weight Capacity: 165 Lb | VIEW ON AMAZON | See Our Full Breakdown |
| Rooftop Cargo Carrier, 18 Cu Ft Hardshell, Heavy-Duty, Made in USA | ![]() | Best Made in USA Heavy-Duty Cargo Box | Dimensions: 57 L x 38.5 W x 17.75 H inches | Capacity: 18 Cu Ft | Material: HDPE plastic | VIEW ON AMAZON | See Our Full Breakdown |
| SportRack Vista XL Rear Opening Cargo Box | ![]() | Best Overall for Large Capacity and Easy Access | Capacity: 18 cubic feet | Material: UV-resistant ABS | Dimensions: 63 x 38 x 19 inches | VIEW ON AMAZON | See Our Full Breakdown |
| SportRack Sidekick Cargo Box | ![]() | Best Compact for Small Loads and Easy Access | Capacity: 8 cubic feet | Dimensions: 54 x 25 x 15.5 inches | Weight: 19.85 pounds | VIEW ON AMAZON | See Our Full Breakdown |
| Auto Dynasty Hard Shell Roof Top Mount Cargo Carrier | ![]() | Best for Weather-Resistant Outdoor Travel | Dimensions: 55″ L x 34.5″ W x 14″ H | Capacity: 12.7 Cubic Feet | Weight Limit: 110 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Auto Dynasty Hard Shell Roof Top Mount Cargo Carrier | ![]() | Best for Easy, Secure Long Trips | Dimensions: 53″ L x 34″ W x 15″ H | Capacity: 11 Cubic Feet | Weight Limit: 110 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| car roof cargo box | Capacity | Dimensions | Material | Includes |
|---|---|---|---|---|
| GarveeTech Rooftop Cargo Box C | 12 cubic feet (340 L) | 54.3 in L x 31.5 in W x 13.4 in H | ABS plastic | Keys, straps |
| Sailnovo Rooftop Cargo Carrier | 20 cubic feet | 51” (L) x 39” (W) x 17” (H) | 1000D Oxford cloth | 6 tie-down straps, 6 safety hooks |
| Car Roof Bag Waterproof Roofto | 21 cubic feet | 47" (L) x 35" (W) x 22" (H) | 800D PVC tarpaulin | 4+2 door hooks, combination lock |
| MIDABAO 20 Cubic Waterproof Ca | 20 cubic feet | 51.1” x 39” x 17” | PVC | Anti-slip mat, mounting straps |
| WORKPRO Rooftop Cargo Carrier | 21 cubic feet | 52"x40"x17" | 840D PVC | 6 door hooks, safety straps, anti-slip mat, storage bag, user manual |
| Hard Shell Roof Top Cargo Carr | 110 lbs | 53 x 34 x 15 inches | ABS plastic | Cargo roof box, keys, mounting brackets, hardware |
| Yakima SkyBox NX 18 XLG Roofto | 18 Cu Ft | — | — | — |
| 12 Cubic Rooftop Cargo Box Car | 12 cubic feet (340L) | 54.3"L x 31.5"W x 13.4"H | ABS plastic | 2 secure straps, 2 keys |
| Garvee Heavy Duty Hard Shell R | 17 Cu Ft | 69" L x 33" W x 11" H | ABS plastic with UV-resistant coating | Straps, keys |
| Rooftop Cargo Carrier | 18 Cu Ft | 57 L x 38.5 W x 17.75 H inches | HDPE plastic | — |
| SportRack Vista XL Rear Openin | 18 cubic feet | 63 x 38 x 19 inches | UV-resistant ABS | — |
| SportRack Sidekick Cargo Box | 8 cubic feet | 54 x 25 x 15.5 inches | — | — |
| Auto Dynasty Hard Shell Roof T | 12.7 Cubic Feet | 55" L x 34.5" W x 14" H | UV-protected, weather-resistant ABS | — |
| Auto Dynasty Hard Shell Roof T | 11 Cubic Feet | 53" L x 34" W x 15" H | UV-protected, weather-resistant ABS | — |
More Details on Our Top Picks
GarveeTech Rooftop Cargo Box Carrier, 165 LBS Capacity, Dual-Side Opening, Waterproof Hard Shell, Universal Fit, Black
This cargo box stands out for its durable ABS construction, offering reliable waterproof and UV-resistant protection, making it a strong choice for frequent travelers who need a secure, hard-shell solution. Compared with the Auto Dynasty Hard Shell Roof Top Mount Cargo Carrier, it provides a larger capacity and dual-sided access, enhancing convenience. However, its 30-day warranty and occasional customer reports of challenging installation mean it’s better suited for those willing to verify compatibility and spend time mounting. Ideal for families or adventure seekers needing rugged, weatherproof storage.
Pros:- Durable, waterproof, and UV-resistant ABS shell ensures long-lasting protection
- Large 12 cubic feet capacity accommodates multiple suitcases
- Universal fit with most roof racks simplifies compatibility
- Dual-sided opening allows easy access from either side
Cons:- May require verification for roof rack compatibility, adding setup time
- Limited 30-day warranty could be a concern for durability over years
Best for: Families who need high capacity and rugged weatherproof protection for long trips
Not ideal for: Casual users with short trips or limited vehicle compatibility, due to installation and warranty concerns
- Material:ABS plastic
- Capacity:12 cubic feet (340 L)
- Weight Capacity:165 lbs
- Dimensions:54.3 in L x 31.5 in W x 13.4 in H
- Color:Black
- Mounting Type:Roof rack compatible
- Opening System:Dual-sided
- Includes:Keys, straps
Our verdict“This hard-shell cargo box is best for users prioritizing durability and weatherproofing over quick installation or extended warranty.”
Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cuft, Fits Most Cars with/Without Rack
This soft-sided roof bag offers an impressive 20 cubic feet of flexible storage, making it ideal for travelers seeking extra space without a hard shell. Its tear-resistant, waterproof Oxford fabric provides reliable protection against rain, and the included straps and hooks make securing it straightforward. Compared to the WORKPRO 21 Cubic Feet Waterproof Car Roof Top Carrier, it’s lighter and easier to store when not in use, but it doesn’t offer the same impact resistance. This bag is perfect for those who prioritize affordability and versatility but are okay with less protection against rough handling.
Pros:- Large 20 cubic feet capacity for versatile storage needs
- Made from tear-resistant, waterproof Oxford fabric for durability
- Simple to install with included straps and hooks
- Folds into a compact bag for easy storage
Cons:- Not suitable for vehicles with sunroofs or small overhangs
- Requires proper filling to prevent water pooling or movement
Best for: Budget-conscious travelers needing large capacity on vehicles with or without roof racks
Not ideal for: Owners of small cars or vehicles with sunroofs, as overhang might be problematic
- Capacity:20 cubic feet
- Dimensions:51” (L) x 39” (W) x 17” (H)
- Material:1000D Oxford cloth
- Includes:6 tie-down straps, 6 safety hooks
Our verdict“This soft roof bag provides ample, flexible space for budget-minded travelers who value ease of storage and setup.”
Car Roof Bag Waterproof Rooftop Cargo Carrier 21 Cubic Feet
This 21-cubic-foot waterproof bag combines generous capacity with added security features like a combination lock and safety hooks, making it well-suited for travelers concerned about theft or loss. Its high-frequency welded waterproof zipper and tearproof 800D PVC tarpaulin offer solid protection, but the bulky, heavy-duty material can make handling cumbersome during installation. Compared with the WORKPRO 21 Cubic Feet Waterproof Car Roof Top Carrier, it emphasizes security and waterproofing, though at the expense of ease of handling.
Pros:- Large 21 cubic feet capacity for extensive gear
- Includes safety hooks and a high-security combination lock
- Waterproof and tearproof with upgraded zipper for long-term use
- Compatible with vehicles with or without roof racks
Cons:- Heavy-duty material can be bulky and difficult to handle
- Zipper, despite waterproofing, may be a concern for long-term durability
Best for: Travelers who prioritize security and waterproofing for valuable or sensitive items
Not ideal for: Users seeking lightweight, easy-to-pack solutions or those with limited vehicle access for bulky items
- Capacity:21 cubic feet
- Dimensions:47″ (L) x 35″ (W) x 22″ (H)
- Material:800D PVC tarpaulin
- Includes:4+2 door hooks, combination lock
Our verdict“Ideal for security-conscious travelers needing extra capacity and waterproof protection for valuable items.”
MIDABAO 20 Cubic Waterproof Car Roof Top Carrier – Cargo Roof Bag with Anti Slip Mat and Racks
This 20-cubic-foot PVC roof bag offers a flexible, easy-to-mount option compatible with all vehicle types, with or without roof racks. Its malleable design allows it to conform to various shapes, making installation straightforward. Compared with rigid options like the GarveeTech Rooftop Cargo Box Carrier, it provides easier storage when not in use but offers less impact resistance. Its waterproof PVC keeps contents dry, yet it may require additional racks for optimal fit on some cars.
Pros:- Large 20 cubic feet capacity for versatile storage
- Malleable design for easy fitting and storage
- Waterproof PVC material keeps contents dry
- Includes anti-slip mat and mounting straps for secure attachment
Cons:- May require additional racks for perfect fit on some vehicles
- Straps and mounting may take time to secure properly
Best for: Travelers needing adaptable, lightweight cargo solutions for all vehicle types
Not ideal for: Owners of high-value or fragile items who require impact-resistant, hard-shell protection
- Capacity:20 cubic feet
- Dimensions:51.1” x 39” x 17”
- Material:PVC
- Includes:Anti-slip mat, mounting straps
Our verdict“This flexible roof carrier suits those who need adaptable, lightweight storage that’s easy to store when not in use.”
WORKPRO Rooftop Cargo Carrier Bag, 21 Cubic Feet Waterproof Car Roof Bag
The WORKPRO cargo bag offers a substantial 21 cubic feet of waterproof storage, with added safety features like reflective strips and adjustable straps, making it suitable for outdoor adventures. Its durable 840D PVC construction withstands weather and rough handling, and the included door hooks facilitate quick installation. Compared with the Sailnovo Roof Bag, it features a longer warranty and extra safety touches, but its softer construction means less impact protection against rough handling or accidents.
Pros:- Large 21 cubic feet capacity ideal for extended trips
- Durable, waterproof 840D PVC material withstands weather
- Includes safety straps, reflective strips, and anti-slip mat for secure fit
- Two-year warranty provides peace of mind
Cons:- Soft design offers less impact protection compared to hard-shell models
- Installation instructions advise caution when attaching straps to side bars
Best for: Outdoor enthusiasts and long-term travelers seeking durability and safety features in a soft roof bag
Not ideal for: Users needing impact-resistant, hard-shell protection for fragile or valuable items
- Capacity:21 cubic feet
- Dimensions:52″x40″x17″
- Material:840D PVC
- Includes:6 door hooks, safety straps, anti-slip mat, storage bag, user manual
- Waterproof:Yes
- Warranty:2 years
Our verdict“Best suited for outdoor travelers valuing durability, safety, and long-term reliability in a soft roof carrier.”
Hard Shell Roof Top Cargo Carrier Waterproof Travel Luggage Box
This universal cargo box shines for its durable ABS plastic construction and straightforward installation, making it a practical choice for those who want reliable weather resistance without extra complexity. Unlike the Yakima SkyBox NX, which offers more advanced security features, this model focuses on basic functionality, which means it lacks some premium touches but comes at a lower price. It’s ideal for smaller vehicles with cross bars, but its fit may be limited for certain SUVs or vans. The secure lock and weatherproof design stand out as key benefits, while its limited compatibility and absence of detailed weight limits are potential concerns.
Best for: Budget-conscious travelers seeking a durable, weatherproof cargo box for standard cross bar setups.
Not ideal for: Owners of vehicles without cross bars or those needing a more feature-rich or high-capacity solution.
- Durable and weather-resistant ABS plastic
- Easy to install without tools
- Secure locking system
- Fits only vehicles with cross bars
- No specified weight limit for loaded cargo
Verdict: A solid, affordable option for basic weatherproof cargo storage on vehicles with cross bars.
Pros:- Durable and weather-resistant construction
- Easy to install without tools
- Secure lock for added security
Cons:- Fits only vehicles with cross bars
- No mention of specific weight limits for cargo
- Material:ABS plastic
- Capacity:110 lbs
- Dimensions:53 x 34 x 15 inches
- Color:Black textured surface
- Includes:Cargo roof box, keys, mounting brackets, hardware
Our verdict“This cargo box suits budget-minded users with standard cross bar setups needing reliable weather protection.”
Yakima SkyBox NX 18 XLG Rooftop Cargo Carrier, 18 Cu Ft, SKS Lock, Black
The Yakima SkyBox NX 18 XLG stands out for its generous 18 cubic feet of storage and dual-sided opening, making loading and unloading more convenient than the Garvee Heavy Duty model, which only offers single-side access. Its sleek, nano-texture finish and SKS lock system emphasize security and durability, perfect for multi-sport families or long trips. However, its weight and installation complexity could be drawbacks for solo travelers or those with smaller vehicles. Compared to the smaller capacities of the Garvee or the 12 cu ft options, this model prioritizes volume and ease of access, trading off some portability and simplicity.
Best for: Active families or outdoor enthusiasts needing ample space and dual-side access for frequent loading.
Not ideal for: Solo travelers or those with limited lifting strength who prefer lighter, simpler options.
- Large 18 cu ft capacity
- Dual-sided opening for easy access
- Secure SKS locking system
- Heavy and potentially difficult to install alone
- Limited color options (black only)
Verdict: Best suited for users prioritizing maximum storage space and ease of access over weight and installation simplicity.
Pros:- Spacious 18 cubic feet storage capacity
- Dual-sided access for convenient loading
- Secure SKS lock system
Cons:- Heavy, may be hard to install alone
- Limited color choices
- Capacity:18 Cu Ft
- Fits skis up to:195cm
- Locking System:SKS Locks
- Color:Black
- Model Number:8007370
- Warranty:Limited-lifetime
Our verdict“This model is ideal for those needing maximum volume and dual access, despite its weight and installation challenges.”
12 Cubic Rooftop Cargo Box Carrier, Dual-Side Opening Hard-Shell Vehicle Roof Mount Travel Luggage Storage, 135Lbs Capacity
Compared with the Garvee Heavy Duty, this 12 cu ft cargo box emphasizes aerodynamics and ease of access, with dual-sided openings that simplify loading. Its waterproof ABS construction offers solid weather protection, but its smaller capacity might be limiting for larger families or longer trips. The need to verify roof rack compatibility is a consideration, particularly for owners of non-standard vehicles. While it offers a good balance of size and protection, it doesn’t quite match the larger volume of the Yakima or Garvee options, making it better suited for moderate needs and vehicles with compatible racks. The aerodynamic shape helps reduce wind noise and fuel consumption, a plus during long drives.
Best for: Travelers wanting a reliable, weatherproof box that won’t compromise fuel efficiency or noise levels.
Not ideal for: Those with very large cargo needs or incompatible roof racks.
- Waterproof and UV-resistant ABS construction
- Dual-sided opening for easy access
- Reduces wind resistance with aerodynamic design
- Compatibility verification needed for roof racks
- Limited capacity compared to larger models
Verdict: An excellent choice for moderate storage needs with a focus on efficiency and weather protection.
Pros:- Waterproof, UV-resistant construction
- Dual-sided opening for easy access
- Aerodynamic shape reduces wind resistance
Cons:- Requires roof rack compatibility check
- Smaller capacity than some competitors
- Capacity:12 cubic feet (340L)
- Dimensions:54.3″L x 31.5″W x 13.4″H
- Weight Capacity:135 lbs
- Material:ABS plastic
- Includes:2 secure straps, 2 keys
- Warranty:1 year
Our verdict“Ideal for users seeking a weatherproof, aerodynamic cargo box for moderate loads and fuel efficiency.”
Garvee Heavy Duty Hard Shell Roof Top Cargo Carrier – 69″ x 33″ x 11″ Waterproof Lockable Storage Box, 17 Cu Ft, 165 Lb Capacity
The Garvee Heavy Duty cargo carrier excels for its large capacity and rugged construction, making it a prime choice for outdoor enthusiasts and families with extensive gear. Its 17 cu ft volume surpasses many competitors like the 12 cu ft model, and its robust UV-resistant ABS shell is built for tough conditions. It offers dual-sided access and lockable security, which are advantages over some smaller or less secure options. However, its size and weight could pose challenges for installation and handling, especially for smaller vehicles or solo users. Compared to the lighter or more aerodynamic options, this carrier emphasizes capacity and durability, sometimes at the expense of ease of use and maneuverability.
Best for: Users with substantial gear needs, such as camping groups or large families on long trips.
Not ideal for: Those with limited space or who prioritize easy handling and quick installation.
- Large 17 cu ft capacity
- Durable waterproof construction with UV resistance
- Tool-free installation fits all roof racks
- Bulky size makes handling challenging
- Limited warranty information available
Verdict: Best suited for heavy-duty outdoor use, where capacity and toughness outweigh ease of handling.
Pros:- Large 17 cubic feet capacity
- Durable, waterproof, UV-resistant shell
- Easy tool-free installation
Cons:- Bulky and potentially hard to handle
- Limited warranty details
- Dimensions:69″ L x 33″ W x 11″ H
- Capacity:17 Cu Ft
- Weight Capacity:165 Lb
- Material:ABS plastic with UV-resistant coating
- Mounting System:Tool-free, fits all roof racks
- Includes:Straps, keys
Our verdict“Designed for those with extensive gear needs, this carrier offers durability and capacity, though it may be cumbersome for smaller vehicles or solo setup.”
Rooftop Cargo Carrier, 18 Cu Ft Hardshell, Heavy-Duty, Made in USA
This 18 cu ft heavy-duty cargo carrier emphasizes durability with HDPE plastic and a weatherproof, secure locking system, making it ideal for rugged outdoor trips. Its American-made quality appeals to buyers seeking domestic craftsmanship, contrasting with imported options like the Yakima or Garvee models. The dual-side access facilitates easy loading, and the size strikes a balance between capacity and manageability. However, its size and weight could be less suitable for smaller vehicles or those looking for lightweight options. While it offers excellent weather protection and toughness, verifying roof rack compatibility remains a necessary step before purchase.
Best for: Customers valuing American-made quality and rugged durability for outdoor adventures.
Not ideal for: Casual users or those with limited cargo space or smaller vehicles.
- Weatherproof, heavy-duty HDPE construction
- Dual side opening for convenience
- Made in the USA
- May be bulky and heavy to handle
- Requires roof racks for installation
Verdict: An excellent choice for those seeking durable, domestically produced cargo protection for demanding outdoor use.
Pros:- Weatherproof and rugged HDPE construction
- Made in the USA for quality assurance
- Dual side access for easy loading
Cons:- Bulky and potentially heavy to handle
- Requires roof rack compatibility
- Dimensions:57 L x 38.5 W x 17.75 H inches
- Capacity:18 Cu Ft
- Material:HDPE plastic
- Made in:USA
Our verdict“Best suited for users prioritizing domestic durability and ruggedness for outdoor activities with ample cargo needs.”
SportRack Vista XL Rear Opening Cargo Box
The SportRack Vista XL stands out for its substantial 18 cubic feet capacity, making it an excellent choice for families or groups needing to carry a lot of gear. Its rear opening simplifies access, especially when the vehicle is parked close to other objects, unlike the side-opening SportRack Sidekick, which is more suited for smaller, lighter loads. The tool-free mounting adds convenience, but the maximum weight of 100 pounds might restrict heavier cargo. Its UV-resistant ABS ensures durability over time, balancing capacity with weather resistance. Compared with the Auto Dynasty Hard Shell, it offers more storage but slightly less weatherproofing and security features. Overall, this box is best for users prioritizing large capacity and quick setup, though it’s less ideal if you often carry heavy or dense loads.
Pros:- Large 18 cubic foot capacity for ample storage
- Rear opening for easier access in tight spaces
- Tool-free mounting hardware simplifies installation
- Includes lock for added security
Cons:- Fits most rack systems but requires compatibility check
- Maximum weight limit of 100 pounds may restrict heavy loads
Best for: Families or outdoor enthusiasts needing significant cargo space with easy rear access
Not ideal for: Solo travelers or those with limited rack compatibility, due to size and weight restrictions
- Capacity:18 cubic feet
- Material:UV-resistant ABS
- Dimensions:63 x 38 x 19 inches
- Max Weight Capacity:100 pounds
- Min-Max Crossbars Spacing:23 5/8 – 29 3/4 inches
Our verdict“This cargo box is perfect for those needing maximum storage space with straightforward access, but less suited for very heavy cargo or smaller vehicles.”
SportRack Sidekick Cargo Box
The SportRack Sidekick makes sense for drivers seeking a smaller, space-efficient cargo solution, with only 8 cubic feet of capacity ideal for golf clubs or camping gear. Its passenger-side opening offers easier loading from the curbside, a feature not shared by the larger Auto Dynasty Hard Shell, which has a broader, more complex opening. The Sidekick’s limited load capacity of 75 pounds and its specific fit for certain rack systems mean it’s less suitable for heavy or bulky items. Its lightweight 19.85 pounds makes installation and removal straightforward, but its smaller size means it can’t replace larger boxes for extended trips. Pick this if you want a secure, manageable storage solution for light loads, but avoid if your gear exceeds its capacity.
Pros:- Space-saving and compact design
- Passenger-side opening simplifies loading
- Secure mounting with lock
Cons:- Limited load capacity restricts larger gear
- Fits only certain rack systems, limiting compatibility
Best for: Urban drivers or casual travelers needing a compact, secure cargo option for light loads
Not ideal for: Long road trips with bulky gear or heavy equipment, due to size limitations
- Capacity:8 cubic feet
- Dimensions:54 x 25 x 15.5 inches
- Weight:19.85 pounds
- Load capacity:75 pounds
Our verdict“This cargo box is ideal for light, everyday loads in urban settings but not for heavy or bulky gear on long trips.”
Auto Dynasty Hard Shell Roof Top Mount Cargo Carrier
The Auto Dynasty Hard Shell offers 12.7 cubic feet of weather-resistant storage, making it a solid choice for outdoor trips where protection from the elements is critical. Its impact-resistant ABS shell surpasses fabric or soft-shell options like the Rooftop Cargo Carrier Bag, providing better security and durability. However, its fit is limited to cross bars up to 13 inches wide, which may exclude some vehicles, and installation can be somewhat challenging without tools. Compared to the GarveeTech, it’s slightly less spacious but more weatherproof. This option is best for travelers needing reliable, weatherproof storage, though it may require careful measurement and fitting before purchase.
Pros:- Spacious 12.7 cubic feet capacity
- Weather-resistant and impact-protected
- Secure lock system enhances safety
- Wide opening facilitates loading
Cons:- Limited to cross bars up to 13 inches wide
- Installation can be challenging without tools
Best for: Outdoor adventurers requiring durable, weatherproof cargo protection
Not ideal for: Users with wider roof racks or seeking quick, tool-free installation for occasional use
- Dimensions:55″ L x 34.5″ W x 14″ H
- Capacity:12.7 Cubic Feet
- Weight Limit:110 lbs
- Material:UV-protected, weather-resistant ABS
- Opening Width:13.5 inches
Our verdict“This box is best for outdoor travelers prioritizing weatherproofing and durability over quick setup or universal fit.”
Auto Dynasty Hard Shell Roof Top Mount Cargo Carrier
The Auto Dynasty Hard Shell Roof Top Carrier offers 11 cubic feet of protected space with a 110 lb weight limit, making it suitable for quick, secure loading during family trips. While its capacity is slightly less than the SportRack Vista XL, it compensates with a weather-resistant shell that shields belongings from rain and impacts. Its universal fit for cross bars up to 13 inches wide makes it compatible with many vehicles, but may exclude some larger or non-standard racks. The tool-free installation process simplifies setup, although the slightly smaller capacity might limit long-term utility for larger families or heavy gear. This model is best for users seeking a balance of security, weatherproofing, and ease of use.
Pros:- 11 cubic feet capacity suitable for most needs
- Weather-resistant and impact-protected
- Secure lock system
- Easy tool-free installation
Cons:- Limited to cross bars up to 13 inches wide
- Slightly smaller capacity compared to larger boxes
Best for: Families or travelers needing a secure, weatherproof cargo solution for short to medium trips
Not ideal for: Drivers with wider or non-standard roof racks or those needing maximum capacity
- Dimensions:53″ L x 34″ W x 15″ H
- Capacity:11 Cubic Feet
- Weight Limit:110 lbs
- Material:UV-protected, weather-resistant ABS
Our verdict“This cargo carrier balances weatherproofing and security well for typical family trips, though it’s less ideal for very heavy loads or larger vehicles.”

How We Picked
Products were evaluated based on several key criteria: overall storage capacity, build quality, weather resistance, ease of installation and use, security features, and value for the price. We prioritized models that balance durability with user-friendly features, especially for those new to roof cargo solutions. Our ranking favors options with proven reliability and versatile compatibility, while also considering budget options for different buyer needs. The products are ordered to highlight the best all-around choices first, followed by specialized picks for specific priorities like affordability or premium features.Factors to Consider When Choosing Car Roof Cargo Box
Choosing the right car roof cargo box involves more than just capacity. It’s important to consider compatibility with your vehicle, ease of installation, and how you’ll use the box. A well-chosen cargo box enhances your travel experience by offering secure, weatherproof storage without sacrificing convenience or safety. Here are some factors that should guide your decision beyond just the listed features.Capacity and Size
Matching the cargo box size to your typical needs is vital. Larger boxes provide more space but may be heavier and more difficult to handle or install. Small to medium-sized boxes are often easier to manage, especially for infrequent use or smaller vehicles. Consider your typical gear volume and whether you’ll need extra space for bulky items or just daily essentials.
Compatibility and Fit
Not all roof racks are universal, so verifying compatibility with your vehicle is essential. Some cargo boxes come with adjustable mounting systems, but others require specific rack types. Measure your roof’s width and the distance between your crossbars to ensure a good fit. An ill-fitting box can cause safety issues or damage to your vehicle, especially during high-speed travel or rough roads.
Ease of Installation and Access
Models with dual-side opening tend to be more convenient, allowing access from either side, which is a big plus in tight parking spaces. Consider how easy it is to mount and remove the box, especially if you’ll do it frequently. Quick-release or tool-free mounting systems save time and effort, making your trips less stressful.
Weatherproofing and Security
Weather resistance is vital to protect your gear from rain, snow, and UV rays. Look for boxes with strong seals, waterproof shells, and durable materials. Security features like built-in locks help prevent theft when you’re away from your vehicle. Remember, a slightly higher investment in weatherproofing can prolong the lifespan of your cargo and keep your belongings safe.
Price and Value
While budget models can be effective for occasional use, investing in a higher-quality, more durable box pays off over time, especially for frequent travelers. Balance your needs with your budget—sometimes paying more upfront saves money on repairs or replacements later. Consider features like capacity, build quality, and security as part of the value equation to make an informed choice.
Frequently Asked Questions
Can I install a roof cargo box on any vehicle?
Most roof cargo boxes are designed to be compatible with a wide range of vehicles, but not all. It’s essential to check the dimensions of your roof and crossbars, and verify that the mounting system of the cargo box fits your vehicle’s rack. Some models are adjustable and more versatile, while others require specific rack types. Confirming these details before purchase helps avoid fitting issues or safety concerns during travel.
Will a roof cargo box impact my vehicle’s fuel efficiency?
Yes, adding a roof cargo box can increase aerodynamic drag, which may reduce fuel efficiency, especially at higher speeds. The extent of this impact depends on the size and shape of the box, as well as your vehicle’s design. To minimize fuel consumption, choose a box with a streamlined shape and remove it when not in use for extended periods. Planning your trips with this in mind can help manage your fuel costs effectively.
How secure are roof cargo boxes against theft?
Many models come with integrated locks or locking mechanisms that deter theft. Higher-end options often include security features like keyed locks and reinforced shells, providing peace of mind during stops. However, no system is completely theft-proof, so consider additional measures if you frequently leave your vehicle unattended in high-risk areas. Properly locking your cargo and parking in secure locations adds layers of protection.
What maintenance does a roof cargo box require?
Maintaining your cargo box involves regular cleaning, especially after exposure to dirt, salt, or road grime. Check seals and locks periodically for signs of wear or damage, and lubricate moving parts as needed. For hard-shell models, inspecting for cracks or chips helps prevent leaks and prolongs lifespan. Proper maintenance ensures your cargo box remains in good condition for many trips ahead.
Is it worth investing in a hard-shell vs. soft-sided cargo box?
Hard-shell cargo boxes generally offer superior protection against weather, theft, and impact, making them ideal for longer trips or valuable gear. Soft-sided options tend to be lighter, easier to install, and more flexible in terms of storage, but they might not provide the same level of security or weatherproofing. Your choice depends on how frequently you’ll use the box, what you plan to carry, and your preferences for weight and convenience.
Conclusion
For most buyers seeking a reliable, versatile, and durable option, the GarveeTech Rooftop Cargo Box Carrier stands out as the best overall choice. If you prioritize budget-friendly solutions, the Sailnovo Rooftop Cargo Carrier Roof Bag offers impressive value without sacrificing too much capacity or weather resistance. For those who want a premium, security-focused experience, the Yakima SkyBox NX provides advanced features and a sleek design. Beginners or infrequent travelers should consider models with straightforward installation, while frequent users or those with larger families may prefer higher-capacity, heavy-duty options. Tailor your pick based on your specific needs to get the most from your vehicle’s added storage space.
Fall Picks
fall essentials
As an affiliate, we earn on qualifying purchases.

















