When searching for extra long rooftop cargo boxes with extra capacity, the goal is to maximize storage without sacrificing ease of use or security. The Yakima CBX XXL stands out as the best overall choice, offering a massive 21.5 cubic feet of space, perfect for large families or long trips. The Thule Force XT XL provides a balance of durability and capacity at a competitive price, making it a strong contender for most buyers. Meanwhile, models like the INNO WEDGE660 excel in low-profile design, ideal for those who prioritize aerodynamics. Keep in mind, the main tradeoffs include size versus weight, ease of installation, and price. Continue reading for a comprehensive review of these options and more to help you find the best fit for your needs.
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Key Takeaways
- The largest capacity models, like the Yakima CBX XXL, provide the most storage but can be heavier and more difficult to install.
- Low-profile options such as the INNO WEDGE660 are better for aerodynamics and fuel efficiency but offer less capacity.
- Models with dual-side opening enhance accessibility, especially on wider vehicles or when space is limited.
- Premium brands like Thule and Yakima balance durability, security, and ease of use, but come at a higher price point.
- Universal fit features and waterproofing are common among top models, but actual fit and weather resistance vary, requiring close attention.
| Yakima CBX XXL 21.5 Cubic Foot Vehicle Rooftop Cargo Carrier | ![]() | Best Overall for Large Capacity and Security | Capacity: 21.5 cubic feet | Dimensions: 91 x 38 x 17 inches | Maximum Snowboard Length: 215 centimeters | VIEW ON AMAZON | See Our Full Breakdown |
| INNO WEDGE660 White 11 cu ft Roof Cargo Box, Low Profile, Dual-Side Opening, Locking, Made in Japan | ![]() | Best for Aerodynamic Design and Ease of Use | Capacity: 11 cu.ft | Exterior Dimensions: 80 x 33 x 11 inches | Interior Dimensions: 72 x 25.6 x 9.2 inches | VIEW ON AMAZON | See Our Full Breakdown |
| GarveeTech Rooftop Cargo Box Carrier, Dual-Side Opening, 12 Cubic Feet, Waterproof, UV-Resistant, Universal Fit | ![]() | Best for Durable, All-Weather Protection | Material: ABS | Capacity: 12 cubic feet | Dimensions: 54.3″L x 31.5″W x 13.4″H | VIEW ON AMAZON | See Our Full Breakdown |
| Rough Country Rooftop Cargo Box 14.5 Cu Ft – Hard Shell Roof Rack Storage Carrier, Lockable & Weatherproof | ![]() | Best for Easy Installation and Weatherproof Security | Capacity: 14.5 cu ft | Interior Dimensions: 65″ L x 32″ W x 13″ H | Supports: Up to 125 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Yakima CBX LG 16 Cu Ft Rooftop Cargo Carrier Gear Box with SKS Lock | ![]() | Best for Spacious, Secure Storage for Multiple Travelers | Capacity: 16 cubic feet | Dimensions: 91 x 38 x 17 inches | Maximum Snowboard/Skis Length: 185 centimeters | VIEW ON AMAZON | See Our Full Breakdown |
| Mockins 84″x39″x6″ XL Extendable Waterproof Car Roof Rack Cargo Carrier | ![]() | Best for Versatile, Large-Scale Storage on Large Vehicles | Dimensions: 84″x39″x6″ | Extendable Lengths: 40″, 63″, 84″ | Weight: 38 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Thule Motion 3 Rooftop Box | ![]() | Best for Aerodynamic Efficiency and Easy Mounting | Dimensions: 81″ L x 38″ W x 18″ H | Material: Durable plastic | Warranty: Limited Lifetime | VIEW ON AMAZON | See Our Full Breakdown |
| SportRack Vista XL Rear Opening Cargo Box | ![]() | Best for Large Capacity with Easy Rear Access | Capacity: 18 cubic feet | Material: UV-resistant ABS | Dimensions: 63 x 38 x 19 in | VIEW ON AMAZON | See Our Full Breakdown |
| TUFFIOM 13.4 cu.ft. Rooftop Cargo Box | ![]() | Best for Compact, Secure Storage with Dual-Side Access | Capacity: 13.4 cubic feet | Dimensions: 61″ L x 27.6″ W x 13.8″ H | Material: ABS | VIEW ON AMAZON | See Our Full Breakdown |
| DNA Motoring Extra Long XXL Rooftop Cargo Carrier | ![]() | Best for Heavy-Duty, Large Capacity with Secure Locking | Size: 78″ L x 31″ W x 15″ H | Capacity: 17 cubic feet | Max Capacity: 110 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Thule Pulse 2 L Roof Mounted Cargo Box, 16 Cubic Ft | ![]() | Best Overall for Versatile Capacity and Ease of Use | Capacity: 16 Cubic Feet | Load Capacity: 75 kg | Material: ASA-ABS plastic | VIEW ON AMAZON | See Our Full Breakdown |
| SportRack Skyline XL Cargo Box | ![]() | Best for Durability and Security in a Sturdy Design | Material: High-density material | Maximum Load Capacity: 150 lbs | Assembly Required: Yes | VIEW ON AMAZON | See Our Full Breakdown |
| 87 Inch Rooftop Cargo Box Carrier, 26 Cu Ft, Heavy Duty, White | ![]() | Best for Maximum Capacity and Easy Installation | Dimensions: 87.2 x 38.19 x 17.36 inches | Capacity: 26 cubic feet | Weight Capacity: 150 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Yakima SkyBox NX XXL Rooftop Cargo Carrier with SKS Lock | ![]() | Best for Family and Ski Gear with Secure Locking | Capacity: 22 cu ft | Length: 215 cm (skis) | Locking System: SKS locks | VIEW ON AMAZON | See Our Full Breakdown |
| Thule Force XT XL Roof Cargo Box | ![]() | Best for Everyday Use with Easy Access and Reliability | Brand: Thule | Model Number: 645850 | Warranty: Limited Lifetime | VIEW ON AMAZON | See Our Full Breakdown |
| extra long rooftop cargo boxes with extra capacity | Material | Capacity | Dimensions |
|---|---|---|---|
| Yakima CBX XXL 21.5 Cubic Foot | Rugged, angular finish with stealth-like texture | 21.5 cubic feet | 91 x 38 x 17 inches |
| INNO WEDGE660 White 11 cu ft R | — | 11 cu.ft | — |
| GarveeTech Rooftop Cargo Box C | ABS | 12 cubic feet | 54.3"L x 31.5"W x 13.4"H |
| Rough Country Rooftop Cargo Bo | High-impact UV-protected ABS | 14.5 cu ft | — |
| Yakima CBX LG 16 Cu Ft Rooftop | Rugged, angular finish with stealth-like texture | 16 cubic feet | 91 x 38 x 17 inches |
| Mockins 84"x39"x6" XL Extendab | Rust-resistant steel | — | 84"x39"x6" |
| Thule Motion 3 Rooftop Box | Durable plastic | — | 81" L x 38" W x 18" H |
| SportRack Vista XL Rear Openin | UV-resistant ABS | 18 cubic feet | 63 x 38 x 19 in |
| TUFFIOM 13.4 cu.ft. Rooftop Ca | ABS | 13.4 cubic feet | 61" L x 27.6" W x 13.8" H |
| DNA Motoring Extra Long XXL Ro | Impact-resistant ABS | 17 cubic feet | — |
| Thule Pulse 2 L Roof Mounted C | ASA-ABS plastic | 16 Cubic Feet | — |
| SportRack Skyline XL Cargo Box | High-density material | — | — |
| 87 Inch Rooftop Cargo Box Carr | ABS and PMMA | 26 cubic feet | 87.2 x 38.19 x 17.36 inches |
| Yakima SkyBox NX XXL Rooftop C | Durable plastic with NX nano-texture | 22 cu ft | — |
| Thule Force XT XL Roof Cargo B | — | — | — |
More Details on Our Top Picks
Yakima CBX XXL 21.5 Cubic Foot Vehicle Rooftop Cargo Carrier
The Yakima CBX XXL stands out for its impressive 21.5 cubic feet of space, making it ideal for families or groups traveling with bulky gear like skis or snowboards. Its dual-sided opening simplifies access from either side, while SKS locks provide maximum security against theft. Compared to the Yakima CBX LG, this model offers significantly more volume, but its bulk and weight can make handling challenging alone. The universal mounting hardware ensures broad compatibility, though installation may require assistance. This cargo box is perfect for those prioritizing maximum capacity and security, even if it involves a higher price and heavier handling.Pros:- Exceptional 21.5 cubic foot capacity for bulky gear
- Dual-sided opening for quick access
- Secure SKS locks for theft deterrence
- Universal mounting hardware for broad compatibility
Cons:- Heavy and bulky, difficult to handle alone
- Higher price point compared to smaller options
- Requires roof rack compatibility for installation
Best for: Large families or adventure travelers needing maximum space for gear and high security
Not ideal for: Solo travelers or those with limited roof rack space who prefer lighter, easier-to-handle options
- Capacity:21.5 cubic feet
- Dimensions:91 x 38 x 17 inches
- Maximum Snowboard Length:215 centimeters
- Mounting Hardware:Universal, fits all Yakima StreamLine crossbars and factory crossbars
- Security:SKS locks
- Material:Rugged, angular finish with stealth-like texture
Our verdict“This model is best suited for users who need maximum cargo capacity and security and are prepared to handle its weight.”
INNO WEDGE660 White 11 cu ft Roof Cargo Box, Low Profile, Dual-Side Opening, Locking, Made in Japan
The INNO WEDGE660 offers a sleek, low-profile design with 11 cu.ft of capacity, making it a smart choice for drivers who prioritize a stylish, aerodynamic profile that minimizes noise and wind resistance. Its dual-side opening allows quick access from either side, and compatibility with various rack types ensures broad usability. When compared with the Yakima CBX XXL, it sacrifices some volume for reduced drag and noise, though it may be less suitable for large gear or multiple travelers. Its interior dimensions limit carrying capacity for bigger items, but the design helps reduce fuel consumption and noise during travel. This pick is ideal for those seeking a balance of style, efficiency, and moderate capacity.Pros:- Aerodynamic shape reduces noise and wind resistance
- Dual-sided opening for convenient access
- Compatible with multiple rack types including Aero bars
- Made in Japan with durable construction
Cons:- Limited hatch clearance may restrict access for larger items
- Capacity may be insufficient for extensive gear needs
- Installation may require some tools despite being marketed as tool-free
Best for: Urban or commuter drivers who want a stylish, quieter cargo solution for moderate gear loads
Not ideal for: Large families or adventure travelers needing maximum cargo capacity
- Capacity:11 cu.ft
- Exterior Dimensions:80 x 33 x 11 inches
- Interior Dimensions:72 x 25.6 x 9.2 inches
- Weight:42 lbs
- Hatch Clearance:12 inches
- Crossbar Compatibility:Universal
- Ski Capacity:6-8
- Snowboard Capacity:4
Our verdict“This cargo box suits drivers seeking a stylish, quieter option for moderate loads without the bulk of larger boxes.”
GarveeTech Rooftop Cargo Box Carrier, Dual-Side Opening, 12 Cubic Feet, Waterproof, UV-Resistant, Universal Fit
The GarveeTech cargo box offers 12 cubic feet of storage with a waterproof, UV-resistant shell, making it an excellent choice for all-weather outdoor adventures. Its dual-sided opening ensures easy access, and its universal fit means it can be mounted on most roof racks. Compared to the Rough Country box, it provides a slightly smaller capacity but emphasizes durability and waterproofing, suitable for wet climates. The interior capacity is enough for a few bags or small gear sets, but not for larger or multiple bulky items. The one-year warranty may be limiting for some, but the construction quality justifies it for users prioritizing longevity and protection.Pros:- Waterproof and UV-resistant shell for all-weather durability
- Universal fit compatible with most roof racks
- Dual-sided access for convenience
- Durable ABS construction
Cons:- Limited capacity for very large gear loads
- Shorter warranty period of one year
- No included installation tools
Best for: Outdoor enthusiasts seeking durable, weatherproof storage for moderate gear loads
Not ideal for: Large families or those needing maximum capacity for extended trips
- Material:ABS
- Capacity:12 cubic feet
- Dimensions:54.3″L x 31.5″W x 13.4″H
- Weight Capacity:165 lbs
- Color:Black
- Warranty:1 year
Our verdict“This option is ideal for users who want reliable weather protection and moderate capacity for outdoor gear in any climate.”
Rough Country Rooftop Cargo Box 14.5 Cu Ft – Hard Shell Roof Rack Storage Carrier, Lockable & Weatherproof
The Rough Country cargo box provides 14.5 cubic feet of extra storage, making it a versatile choice for outdoor gear and luggage. Its UV-protected ABS shell ensures weather resistance, while the lockable design adds security during stops. Compared with the Yakima CBX XXL, it offers less volume but is easier to install on most crossbars without drilling, thanks to its universal fit. The strut-assisted lid simplifies loading, but its 125 lbs weight limit may restrict heavier gear. It’s a practical solution for users needing a straightforward, weatherproof cargo box that installs quickly without specialized tools, yet it may not suit those with very heavy or bulky loads.Pros:- Weatherproof and UV-protected ABS shell
- Easy installation on most crossbars without drilling
- Lockable for added security
- Strut-assisted lid for easy loading
Cons:- Limited to 125 lbs load capacity
- Capacity may not suit very large or heavy gear
- No included installation tools
Best for: Outdoor lovers and travelers seeking a weatherproof, easy-to-install cargo solution for moderate gear loads
Not ideal for: Heavy-duty users or those needing maximum capacity for larger gear or multiple travelers
- Capacity:14.5 cu ft
- Interior Dimensions:65″ L x 32″ W x 13″ H
- Supports:Up to 125 lbs
- Material:High-impact UV-protected ABS
- Made in:USA
- Warranty:3-year limited
Our verdict“This cargo box suits users who value quick, secure installation and weather protection for moderate outdoor gear loads.”
Yakima CBX LG 16 Cu Ft Rooftop Cargo Carrier Gear Box with SKS Lock
The Yakima CBX LG offers a generous 16 cubic feet of capacity, fitting well between the larger CBX XXL and smaller models like the INNO WEDGE660. Its dual-sided opening and SKS locks ensure secure, easy access, making it suitable for multi-person trips. While it offers ample space, its size and weight can make handling difficult alone, similar to the CBX XXL, but with slightly less volume. It’s a versatile choice for travelers who need more room than mid-sized boxes but don’t require the maximum capacity of the XXL. The high price might deter casual users, but its rugged design and secure locking system justify the cost for serious travelers.Pros:- Large 16 cubic foot capacity for versatile gear
- Dual-sided access for convenience
- Secure SKS locking system
- Universal mounting hardware fits most crossbars
Cons:- Heavy and large, challenging to install alone
- Cost may be prohibitive for casual users
- Limited to compatible crossbars, possibly requiring extra hardware
Best for: Road trip enthusiasts and outdoor adventurers needing a large, secure cargo box without going to the maximum size
Not ideal for: Solo travelers or those with limited roof rack space who want a lightweight, compact option
- Capacity:16 cubic feet
- Dimensions:91 x 38 x 17 inches
- Maximum Snowboard/Skis Length:185 centimeters
- Material:Rugged, angular finish with stealth-like texture
- Locking System:SKS locks
- Mounting Hardware:Universal, fits all Yakima StreamLine crossbars and factory crossbars
Our verdict“This cargo box is ideal for travelers who need substantial space combined with security and compatibility, despite handling challenges.”
Mockins 84″x39″x6″ XL Extendable Waterproof Car Roof Rack Cargo Carrier
This extendable roof rack stands out for its adaptability, accommodating vehicles from SUVs to RVs with its telescoping design that extends from 40″ to 84″. Compared to the SportRack Vista XL, which offers a fixed size, the Mockins model provides more flexibility for oversized or irregularly shaped items. Its weatherproof, rust-resistant steel construction ensures durability during harsh conditions, making it suitable for long trips. However, at 38 lbs, it’s heavier than some alternatives like the DNA Motoring box, which could complicate installation alone. The included accessories—cargo bag, straps, and lock—offer a comprehensive setup for secure transport. The main tradeoff is its weight and the need for roof crossbars, limiting compatibility for some vehicles. This pick makes the most sense for those needing maximum adjustability and capacity on large or irregular vehicles, willing to handle a heavier load during installation.
Pros:- Extendable design allows for customized length to fit various vehicles
- Weatherproof and rust-resistant for durability in all conditions
- Includes a comprehensive set of accessories for secure, versatile use
Cons:- Heavy at 38 lbs, making installation more difficult alone
- Requires crossbars, limiting compatibility with some vehicles
Best for: Owners of large vehicles like RVs and SUVs who need maximum, customizable cargo space for bulky or irregular items
Not ideal for: Small car owners or those with roof racks without crossbars, due to weight and mounting restrictions
- Dimensions:84″x39″x6″
- Extendable Lengths:40″, 63″, 84″
- Weight:38 lbs
- Supports:Up to 250 lbs
- Cargo Capacity:35 cubic feet
- Material:Rust-resistant steel
Our verdict“Best suited for owners of large, equipped vehicles who need flexible, high-capacity roof storage.”
Thule Motion 3 Rooftop Box
The Thule Motion 3 is a sleek choice for those prioritizing aerodynamic design and quick setup. Its 81″ length and 38″ width provide generous space, but compared to the Mockins extendable rack, it offers less flexibility in size adjustments. The quick-mount system with torque indicator simplifies installation, yet some users note that the instructions could be clearer, especially for first-timers. Its sturdy lock enhances security, making it a good option for longer trips. However, it lacks internal organization features or interior accessories, which could be a drawback for organized packing. Its higher price point reflects its premium build and aerodynamics, but the limited interior options might leave some needing more specialized storage solutions. This model suits drivers seeking a stylish, easy-to-mount, and efficient cargo solution for everyday or adventure use.
Pros:- Aerodynamic shape reduces drag and improves fuel efficiency
- Easy to install with quick-mount system and torque indicator
- Secure locking enhances safety during travel
Cons:- Limited interior features or organizational options
- Some users find installation instructions less clear
Best for: Frequent travelers or daily commuters who want a stylish, aerodynamic, and secure cargo box with minimal fuss
Not ideal for: Users needing adjustable length or very large capacity, as it’s less flexible and slightly smaller than some extendable options
- Dimensions:81″ L x 38″ W x 18″ H
- Material:Durable plastic
- Warranty:Limited Lifetime
Our verdict“Ideal for those valuing sleek design, ease of use, and secure locking over maximum capacity or size flexibility.”
SportRack Vista XL Rear Opening Cargo Box
The SportRack Vista XL offers 18 cubic feet of storage, making it a strong choice for those needing space without excessive bulk. Its rear-opening design provides convenient access, especially when parked, unlike some top-opening models like the Thule Motion 3. Compared to the more flexible Mockins rack, its fixed size may be less adaptable, but it simplifies installation with tool-free hardware. Its UV-resistant ABS construction ensures durability against sun exposure. On the downside, its bulkiness can be an issue for smaller vehicles, and its 100-pound weight limit constrains heavier cargo. Still, for users prioritizing straightforward, large-capacity storage with easy rear access, this model delivers reliability at a reasonable price point.
Pros:- Large 18 cubic foot capacity for bulky or multiple items
- Easy rear access simplifies loading and unloading
- UV-resistant and durable construction
Cons:- Bulky for smaller vehicles, limiting compatibility
- Maximum weight capacity of 100 pounds can restrict heavier cargo
Best for: Families or individuals who need large, secure storage with easy rear access for loading and unloading
Not ideal for: Owners of compact vehicles or those carrying very heavy items exceeding 100 pounds
- Capacity:18 cubic feet
- Material:UV-resistant ABS
- Dimensions:63 x 38 x 19 in
- Max Weight Capacity:100 pounds
Our verdict“Best for users seeking large, rear-accessible cargo space with straightforward installation.”
TUFFIOM 13.4 cu.ft. Rooftop Cargo Box
The TUFFIOM cargo box offers a more modest yet functional 13.4 cubic feet of storage, ideal for those with limited rooftop space. Its dual-side opening enhances convenience, especially in tight parking spots, and its 150 lbs weight capacity supports a decent amount of gear. Compared to larger options like the DNA Motoring, this model is easier to handle and install, but its smaller size limits overall capacity, making it unsuitable for extensive family trips. The ABS shell provides weather resistance, but the limited dimensions mean it’s more suited to lighter, bulkier items rather than large, bulky loads. This box makes the most sense for everyday use or short trips where space and ease of access are priorities.
Pros:- Dual-side opening improves accessibility
- Secure lock with keys for peace of mind
- Durable ABS shell withstands weather
Cons:- Limited capacity compared to larger models
- Installation may be tricky due to small size and weight distribution
Best for: Small families or daily commuters who need a secure, weatherproof box for moderate gear on limited roof space
Not ideal for: Users requiring maximum capacity for long trips or bulky loads, as it’s relatively compact
- Capacity:13.4 cubic feet
- Dimensions:61″ L x 27.6″ W x 13.8″ H
- Material:ABS
- Max Load Capacity:150 lbs
Our verdict“Ideal for users needing a compact, secure cargo box with easy dual-side access for everyday or short-term use.”
DNA Motoring Extra Long XXL Rooftop Cargo Carrier
The DNA Motoring XXL cargo carrier provides 17 cubic feet of space with a maximum load of 110 lbs, making it suitable for bulky or heavy items. Its impact-resistant ABS shell and glossy black finish offer weather resistance and a sleek look, comparable to the more expensive Thule models but at a more accessible price. Its size—78″ long—makes it well-suited for longer or wider items, but the 37 lbs weight can make handling and installation challenging, especially for solo users. This box lacks internal organization features, so packing efficiency depends on user arrangement. Its compatibility is limited to vehicles with cross bars, similar to the other models in this lineup. This choice is ideal for those needing a large, durable carrier to handle heavy or lengthy items, but not for those seeking lightweight or highly versatile options.
Pros:- Large 17 cubic feet capacity for bulky loads
- Impact-resistant, weatherproof ABS shell maintains durability
- Includes lock and keys for added security
Cons:- Heavy at 37 lbs, making handling cumbersome
- Limited internal organization features
Best for: Heavy-duty users and those transporting long or bulky items on vehicles with cross bars
Not ideal for: Small vehicles or users seeking lightweight, highly portable options, as it’s relatively heavy and fixed in size
- Size:78″ L x 31″ W x 15″ H
- Capacity:17 cubic feet
- Max Capacity:110 lbs
- Material:Impact-resistant ABS
Our verdict“Best for users needing a large, tough carrier for heavy or long loads on equipped vehicles, accepting some handling difficulty.”
Thule Pulse 2 L Roof Mounted Cargo Box, 16 Cubic Ft
The Thule Pulse 2 L stands out for its combination of generous 16 cubic feet capacity and user-friendly dual-side access, making it ideal for those who need quick loading and unloading. Compared to the Yakima SkyBox NX XXL, it offers easier installation with a tool-free mounting system, though it’s slightly smaller in volume. Its durable ASA-ABS plastic ensures weather resistance, but the weight can be a challenge when fully loaded, especially for solo handling. The torque indicator adds confidence in secure attachment, which is vital for safety during long trips. This model is best suited for drivers seeking a reliable, mid-sized cargo box that doesn’t compromise on ease of use, but it’s less ideal for larger families with extensive gear needs.
Pros:- Large 16 cubic feet capacity for versatile storage
- Easy dual-side access for quick loading and unloading
- Secure, tool-free mounting system with torque indicator
Cons:- Limited to specific vehicle roof shapes
- Heavy to handle when fully loaded
- Proper torque setting necessary for safety
Best for: Small to medium families needing a reliable, easy-to-mount box for frequent travel
Not ideal for: Users with very large gear or those carrying bulky items who require maximum capacity
- Capacity:16 Cubic Feet
- Load Capacity:75 kg
- Material:ASA-ABS plastic
- Access:Dual-side opening
- Mounting System:Tool-free with torque indicator
Our verdict“This cargo box offers a balanced mix of capacity and convenience, making it ideal for everyday travelers and outdoor adventurers alike.”
SportRack Skyline XL Cargo Box
The SportRack Skyline XL appeals to those prioritizing rugged durability, thanks to its high-density construction that withstands rough conditions. Its passenger side opening simplifies access on tight parking spots, and the included locks help secure valuable gear. Compared with the Thule Pulse 2 L, it offers a higher maximum load capacity—up to 150 lbs—but requires significant assembly, which could be a hassle for some users. Compatibility depends heavily on vehicle roof rack fit, and mixed reviews suggest this model may have inconsistent quality control. This box makes the most sense for outdoor enthusiasts who want a tough, secure carrier, but it’s less suitable for quick, everyday trips due to assembly complexity.
Pros:- High-density material for enhanced durability
- Passenger side opening offers easy access
- Includes locks for added security
Cons:- Significant assembly required
- Dependent on vehicle compatibility
- Mixed customer reviews on long-term reliability
Best for: Active outdoor users needing a durable, lockable cargo box with high capacity
Not ideal for: Casual drivers seeking a quick-install, no-fuss solution for occasional trips
- Material:High-density material
- Maximum Load Capacity:150 lbs
- Assembly Required:Yes
- Access:Passenger side opening
- Locks:Includes locks
Our verdict“This cargo box excels in durability and security, ideal for frequent outdoor adventures but less convenient for quick, casual use.”
87 Inch Rooftop Cargo Box Carrier, 26 Cu Ft, Heavy Duty, White
The 87 Inch Rooftop Cargo Box provides an impressive 26 cubic feet of storage, making it a top choice for large families or those with extensive gear. Its tool-free, universal fit system allows quick installation on most roof racks, and dual side opening supports easy access from either side. Made from durable ABS and PMMA, it handles weather conditions well, though its weight—especially when filled—can be tough to manage solo. Limited color options and the potential heaviness mean it’s less flexible for quick setups or aesthetic preferences. This model is best for travelers prioritizing maximum storage capacity with straightforward installation, but it may be overkill for casual users or those with smaller vehicles.
Pros:- Massive 26 cubic feet capacity for extensive gear
- Easy, tool-free installation on most roof racks
- Weather-resistant, durable construction
- Dual side opening for convenience
Cons:- Heavy to handle alone when full
- Limited color options (white only)
- Requires compatible roof racks for optimal fit
Best for: Large families or outdoor groups needing extensive cargo capacity for long trips
Not ideal for: Solo travelers or those with small, lightweight vehicles who find handling heavy cargo cumbersome
- Dimensions:87.2 x 38.19 x 17.36 inches
- Capacity:26 cubic feet
- Weight Capacity:150 lbs
- Material:ABS and PMMA
- Opening Style:Dual side opening
- Installation:Tool-free, fits most roof crossbars
Our verdict“This oversized cargo box is perfect for maximizing storage, especially for large groups, but handling its weight needs consideration.”
Yakima SkyBox NX XXL Rooftop Cargo Carrier with SKS Lock
The Yakima SkyBox NX XXL is designed for families and outdoor enthusiasts who need a spacious 22 cubic feet of storage. Its sleek, unobstructed floor simplifies loading bulky items like skis or large luggage, and dual-side access speeds up unloading. The SKS locks enhance security, making it suitable for longer trips. Compared to the Thule Force XT XL, its larger capacity and stylish design appeal to users wanting both function and aesthetics. However, it can be heavy to handle alone, and installation might take some effort, especially on vehicles with less compatible roof racks. Overall, this carrier excels in combining style, security, and capacity, but may be less convenient for quick, on-the-fly trips.
Pros:- Large 22 cubic feet capacity for gear and skis
- Dual-sided access facilitates easy loading
- SKS locks provide security during travel
- Sleek, durable construction with aesthetic appeal
Cons:- Heavy handling alone
- Installation may require effort
- Price may be higher than simpler options
Best for: Families or outdoor adventurers needing secure, spacious cargo for gear and skis
Not ideal for: Solo users or those needing a lightweight, quick-install option for occasional trips
- Capacity:22 cu ft
- Length:215 cm (skis)
- Locking System:SKS locks
- Material:Durable plastic with NX nano-texture
- Color:Black
- Item Count:1
Our verdict“This cargo carrier offers ample capacity and security for family trips, with a sleek look that stands out, though handling and installation require some effort.”
Thule Force XT XL Roof Cargo Box
The Thule Force XT XL is a reliable, sleek option suited for daily drivers and active lifestyles. Its quick, secure mounting system with indicator lights makes setup straightforward, and its design allows easy access from both sides of the vehicle—an advantage over some bulkier models. While it may not match the largest capacity of the 87 Inch Rooftop Carrier, its balanced size and proven safety tests make it suitable for those who want dependable everyday performance. However, the limited number of customer reviews suggests some uncertainty about long-term durability, and installation can be challenging for some users. This pick is ideal for those seeking a durable, all-around rooftop carrier for regular use, but it might fall short for those needing maximum volume.
Pros:- Durable, sleek design suitable for daily use
- Easy, secure mounting with indicator lights
- Convenient dual-side access
Cons:- Limited long-term durability data
- No specific price information
- Possible installation challenges
Best for: Active daily drivers needing a dependable, easy-to-use cargo box for regular trips
Not ideal for: Users who require the largest possible capacity or have complex installation needs
- Brand:Thule
- Model Number:645850
- Warranty:Limited Lifetime
- Included Components:Rooftop cargo carrier box
- Unit Count:1
- Rank:#19,733 in Automotive
Our verdict“A solid, reliable choice for everyday use, especially for drivers who value ease of access and quick setup over maximum capacity.”

How We Picked
This lineup was curated based on a combination of capacity, build quality, ease of installation, security features, and overall value. I evaluated each cargo box for its maximum volume, weight capacity, and compatibility with different vehicle types. Durability factors such as weather resistance, lock quality, and UV protection also played a key role. To rank these options, I considered user reviews and brand reputation, ensuring that each product offered a practical balance of capacity and usability. The goal was to identify models that excel in providing extra long, high-capacity storage while maintaining ease of use and durability, helping buyers find options suited to various needs and budgets.Factors to Consider When Choosing Extra Long Rooftop Cargo Boxes With Extra Capacity
Choosing the right extra long rooftop cargo box involves more than just capacity. It’s essential to consider how the size and features align with your vehicle, driving habits, and storage needs. Making a smart choice requires understanding key factors that influence performance, convenience, and longevity.Capacity and Size
While all these options emphasize extra length and capacity, the actual volume varies significantly. Larger boxes provide more space for gear, but they also tend to be heavier and more challenging to install or remove. Consider your vehicle’s roof dimensions and whether you’ll need the extra length for specific items like skis or camping gear. Overly large boxes may also impact fuel efficiency, so balance your storage needs with practical considerations for your vehicle and driving habits.
Ease of Installation and Access
Look for models with features like dual-side opening, which simplifies access when parked in tight spots or on wider vehicles. Installation ease varies, with some boxes requiring more effort or tools to mount securely. Check for compatibility with your roof rack system and whether the mounting hardware is adjustable. Ease of access is especially important if multiple users will regularly load and unload gear, so consider models with user-friendly latches or locks.
Build Quality and Weather Resistance
Durability depends heavily on materials and weatherproofing. Hard shells made from high-quality ABS or polyethylene tend to resist impacts and UV damage better. Waterproof seals and UV-resistant coatings extend the lifespan of the cargo box and protect your gear. Be cautious of lower-cost options that may compromise on weatherproofing or structural integrity, especially if you plan extended outdoor use or multiple seasonal trips.
Security Features
Since rooftop cargo boxes are attractive targets for theft, locking mechanisms are vital. Many high-end models include integrated locks or key-based security. The quality of these locks varies, with some offering more resistance to tampering. Consider whether the lock system is easy to operate and whether it provides a secure seal to prevent water infiltration, especially if you carry valuable or sensitive gear.
Price and Brand Reputation
Premium brands like Thule and Yakima often deliver better build quality, security, and warranty coverage, but they come at a higher cost. Conversely, less established brands may offer competitive prices but could lack durability or advanced features. It’s wise to weigh your specific needs against your budget, and prioritize brands with positive reviews and reliable customer service. Remember, investing in a higher-quality product can save money over time through reduced maintenance and replacement costs.
Frequently Asked Questions
How do I determine if a cargo box will fit my vehicle?
To ensure a rooftop cargo box fits your vehicle, measure your roof’s length and width first. Check the width of your crossbars and their distance apart, then compare these measurements with the dimensions of the cargo box. Most manufacturers provide compatibility charts; reviewing these can prevent sizing issues. Remember, even a long cargo box needs to clear your vehicle’s doors and accessories like antennas or roof vents, so always verify these clearances before purchasing.
Is a larger capacity cargo box worth the extra cost?
A larger capacity cargo box offers the advantage of accommodating more gear or larger items, which is beneficial for long trips or large groups. However, it also tends to be heavier, more cumbersome to install, and may impact fuel economy. If your trips regularly involve significant gear needs or you transport bulky items, investing in extra capacity makes sense. For occasional use or smaller vehicles, a slightly smaller model might provide a better balance of convenience and cost.
How important is weatherproofing for an extra long cargo box?
Weatherproofing is essential when carrying gear that must stay dry, especially on long trips or in unpredictable weather. High-quality seals and UV-resistant shells prevent water infiltration and UV damage, extending the lifespan of both the box and its contents. Cheaper models may lack effective seals, leading to leaks, or degrade quickly under sun exposure. If you plan to use the box year-round, prioritizing weatherproof features can save you hassle and protect your investment over time.
What security features should I look for in a long cargo box?
Security features such as integrated locks or keyed locking systems are vital to protect your gear from theft. Look for models with high-quality locks that resist tampering, and consider those with locking mechanisms on both sides for added security and convenience. Some brands also offer key-alike systems for multiple locks, simplifying access. A secure seal combined with a good lock ensures your gear stays safe and dry during long stops or overnight stays.
Are there specific brands known for durability and quality?
Brands like Thule and Yakima are widely recognized for their durable, high-quality rooftop cargo carriers. They often feature advanced weatherproofing, secure locking systems, and robust construction that withstands frequent use and harsh conditions. Lesser-known brands might offer competitive prices but may lack the same level of durability or customer support. When investing in a long-term solution, opting for reputable brands can lead to better performance and peace of mind.
Conclusion
For those seeking the best overall long cargo box, the Yakima CBX XXL offers unparalleled capacity and sturdy design, making it ideal for large families or extensive travel. Budget-conscious buyers should consider the SportRack Vista XL, which balances size and affordability without sacrificing too much on quality. For users prioritizing ease of access and security, models like the Yakima SkyBox NX XXL stand out. Beginners or occasional users might favor the INNO WEDGE660 for its low profile and simple installation. Ultimately, selecting the right cargo box depends on your specific needs—whether it’s maximum capacity, ease of use, or durability. Evaluate your vehicle size, typical gear, and driving conditions to make the most informed choice.
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