Searching for the best rooftop cargo box to carry investigation gear requires balancing capacity, security, and ease of access. The Rooftop Cargo Box Carrier with 14 cubic feet stands out for its dual-side opening and solid capacity, making it ideal for quick gear access. The Perflex Exclusive Rooftop Cargo Box offers a larger 17.7 cubic feet space for bigger payloads, perfect for extensive investigations. However, larger capacity often means increased weight and complexity, so choosing the right model depends on your specific needs. Continue reading to explore the top options and find the best fit for your investigation gear transport.
Key Takeaways
- Capacity varies significantly, with options from 10 to 17.7 cubic feet, affecting how much gear can be stored.
- Dual-side opening models provide easier access to gear from either side of the vehicle, saving time during investigations.
- Security features like lockable lids are critical for protecting sensitive investigation equipment during transit.
- Weatherproofing, including waterproof shells and seals, is essential for safeguarding gear from the elements.
- Build quality and weight capacity directly influence durability and the type of investigation gear that can be safely transported.
| Rooftop Cargo Box Carrier, 14 Cubic Feet, Dual-Side Opening, 165 lbs Capacity, Black | ![]() | Best Overall for Versatile Investigation Gear Storage | Material: ABS plastic | Capacity: 14 cubic feet (340L) | Weight Capacity: 165 lbs | VIEW LATEST PRICE | See Our Full Breakdown |
| Perflex Exclusive Rooftop Cargo Box Carrier 17.7 Cubic Feet, Black | ![]() | Best Value for Large, Easy-Access Storage | Capacity: 17.7 cubic feet (500 L) | Weight Capacity: 130 lbs (60 kg) | Material: UV-resistant, impact-resistant ABS | VIEW LATEST PRICE | See Our Full Breakdown |
| Garvee Heavy Duty Hard Shell Roof Top Cargo Carrier – 69L x 33W x 11H, Waterproof, Lockable, 17 Cu Ft, 165 lbs Capacity | ![]() | Best Rugged, Secure Hard Shell for Outdoor Investigation Gear | Dimensions: 69L x 33W x 11H inches | Capacity: 17 Cu Ft | Weight Capacity: 165 lbs | VIEW LATEST PRICE | See Our Full Breakdown |
| Yakima DeepSpace 10 Hard Shell Cargo Box, 10 Cubic Feet, Black | ![]() | Best Compact for Versatile Investigation Gear Storage | Capacity: 10 cubic feet | Load rating: 100 pounds | Material: ABS plastic | VIEW LATEST PRICE | See Our Full Breakdown |
| 70 Inch Rooftop Cargo Box Carrier, 17.7 Cubic Ft, Waterproof, Dual Side Opening, 165 Lbs Capacity | ![]() | Best Overall for Large Investigation Gear Storage | Dimensions: 70” L x 31” W x 15” H | Capacity: 17.7 Cubic Feet | Weight Capacity: 165 lbs | VIEW LATEST PRICE | See Our Full Breakdown |
| Thule Motion 3 Rooftop Box | ![]() | Best Premium for Ease and Advanced Features | Design: Wing-shaped profile with forward-leaning nose | Mounting System: PowerClick quick-mount with torque indicator | Locking System: SlideLock with separate lock and open functions | VIEW LATEST PRICE | See Our Full Breakdown |
| SportRack Vista XL Rear Opening Cargo Box | ![]() | Best for Large Capacity and Easy Mounting | Capacity: 18 cubic feet (510 L) | Material: UV-resistant ABS | Dimensions: 63 x 38 x 19 in / 160 x 96.5 x 48 cm | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
Rooftop Cargo Box Carrier, 14 Cubic Feet, Dual-Side Opening, 165 lbs Capacity, Black
This cargo box stands out for its durable ABS construction, offering waterproof and UV-resistant protection that makes it suitable for safeguarding sensitive investigation equipment during long road trips. Compared with the Yakima DeepSpace 10, it provides a larger capacity—14 cubic feet versus 10—and a higher weight limit of 165 lbs, making it more adaptable for bulkier gear. Its dual-sided opening enhances accessibility from either side of the vehicle, which is a significant convenience when managing delicate gear in tight parking situations. However, its weight and the need to verify roof rack compatibility could pose challenges during installation and removal. This pick is ideal for researchers or investigators who need reliable, weatherproof storage without sacrificing capacity or ease of access.
Pros:- Durable ABS material offering waterproof and UV-resistant protection
- Large 14 cubic feet capacity for bulky investigation equipment
- Dual-sided opening for easy access from either side of the vehicle
- Universal fit for most roof racks
Cons:- Requires verification of roof rack compatibility before purchase
- Heavy to install and remove, which may complicate quick trips
Best for: Investigation teams requiring robust, weatherproof storage for bulky or sensitive gear during long trips
Not ideal for: Casual travelers with lightweight, infrequent gear needs, as the box may be heavier and more complex to install
- Material:ABS plastic
- Capacity:14 cubic feet (340L)
- Weight Capacity:165 lbs
- Dimensions:54.3″L x 31.5″W x 13.4″H / 62.2″L x 31.5″W x 13.4″H
- Color:Black
- Opening:Dual-sided
- Warranty:1 year
Bottom line: This cargo box suits investigators who prioritize durability, capacity, and weather protection for extended outdoor operations.
Perflex Exclusive Rooftop Cargo Box Carrier 17.7 Cubic Feet, Black
The Perflex cargo box offers an impressive 17.7 cubic feet of storage, making it excellent for investigators needing ample space for bulky gear like skis, snowboards, or large containers. It’s more aerodynamic than some bulky units, reducing wind noise during highway runs, and its tool-free, universal fit installation simplifies setup. Compared with the Garvee Hard Shell, it provides a larger capacity but at a slightly lower maximum load of 130 lbs, which might limit heavier gear. Its dual-side opening enhances convenience for quick gear retrieval or loading in tight spots. The limited color options might be a minor aesthetic concern. This model is well-suited for teams who prioritize maximum volume and easy installation without complex tools.
Pros:- Large 17.7 cu ft capacity for bulky investigation gear
- Dual-side opening for quick access
- Tool-free, universal fit for roof racks
- Water-resistant and impact-resistant material
Cons:- Roof racks are not included, requiring an additional purchase
- Limited color options
Best for: Investigation teams with large gear needs who value straightforward, tool-free mounting
Not ideal for: Investigators who require higher weight capacities or specific color matching for fleet uniformity
- Capacity:17.7 cubic feet (500 L)
- Weight Capacity:130 lbs (60 kg)
- Material:UV-resistant, impact-resistant ABS
- Color:Black
- Installation:Tool-free, universal fit
Bottom line: This cargo box makes the most sense for investigators who need maximum volume with quick, tool-free setup and access.
Garvee Heavy Duty Hard Shell Roof Top Cargo Carrier – 69L x 33W x 11H, Waterproof, Lockable, 17 Cu Ft, 165 lbs Capacity
This hard-shell cargo carrier emphasizes rugged durability with its impact-resistant ABS construction, making it ideal for investigations in rough outdoor environments. At 17 cubic feet, it offers ample space comparable to the Perflex model but with added security through its lockable design. Its aerodynamic shape reduces wind noise, a benefit over bulkier soft-sided options. Compared to the Yakima DeepSpace 10, it provides similar capacity but with a more secure lock system, although it may be more challenging to open in very cold weather. Its compatibility with all roof rack types makes it versatile. This option is best for investigators who need to keep sensitive equipment secure and protected from the elements in rugged settings.
Pros:- Large 17 cu ft capacity for bulky or sensitive gear
- Waterproof, UV-resistant shell enhances durability
- Lockable for added security during outdoor operations
- Easy, tool-free installation fitting all roof rack types
Cons:- Rigid shell may be less flexible for oddly shaped items
- Can be challenging to open in cold weather
Best for: Outdoor investigation teams requiring rugged, lockable, weatherproof storage
Not ideal for: Casual or urban investigators who prioritize lightweight or quick-access options
- Dimensions:69L x 33W x 11H inches
- Capacity:17 Cu Ft
- Weight Capacity:165 lbs
- Material:ABS plastic with UV-resistant coating
- Installation:Tool-free, quick mount
- Compatibility:Fits all roof racks including round, square, and factory bars
Bottom line: This hard-shell carrier is best suited for outdoor investigators who need rugged security and weather protection for their gear.
Yakima DeepSpace 10 Hard Shell Cargo Box, 10 Cubic Feet, Black
The Yakima DeepSpace 10 provides a solid 10 cubic feet of storage in a lightweight, durable ABS shell. Its compact size makes it easier to install on smaller vehicles or when space is limited, compared to larger options like the Perflex or Garvee. The SKS lock enhances security, especially when leaving gear unattended, while the universal mounting hardware simplifies setup. Its slightly smaller capacity may be limiting for investigators with bulky gear, but it excels in urban or short-distance scenarios where maneuverability and ease of access are priorities. Compared to the other larger boxes, it sacrifices some volume but wins in versatility and ease of handling, making it perfect for quick trips or smaller vehicle use.
Pros:- Lightweight and rugged design for easy handling
- Secure SKS lock for gear protection
- Easy to install with universal hardware
- Compact size ideal for smaller vehicles
Cons:- Limited capacity for bulky investigation equipment
- Requires crossbars not included, adding to total cost
Best for: Investigators who need a lightweight, secure, and space-efficient cargo solution
Not ideal for: Teams with large or bulky gear that exceeds 10 cubic feet or require maximum capacity
- Capacity:10 cubic feet
- Load rating:100 pounds
- Material:ABS plastic
- Color:Black
- Mounting:Roof or truck bed crossbars (not included)
Bottom line: This cargo box suits investigators seeking a compact, secure option that fits smaller vehicles or urban environments.
70 Inch Rooftop Cargo Box Carrier, 17.7 Cubic Ft, Waterproof, Dual Side Opening, 165 Lbs Capacity
This cargo box stands out for its generous 17.7 cubic feet capacity, making it an excellent choice for investigators needing to transport bulky or numerous gear items. Its impact-resistant ABS construction ensures gear stays protected from weather and road debris, and dual side opening simplifies access even when parked in tight spots. Compared with the SportRack Vista XL, it offers similar capacity but with a more aerodynamic profile that reduces wind noise and drag, making it ideal for longer trips. The security lock adds peace of mind, though users should verify roof rack compatibility beforehand since mounting tools aren’t included. This model is best suited for investigators who prioritize maximum space and security on extended outdoor missions. However, those with lower roof clearance or smaller vehicles might find it cumbersome to install or transport.
Pros:- Large capacity for bulky gear and multiple items
- Weatherproof and impact-resistant construction
- Dual side opening for quick access
- Secure locking system with keys
Cons:- Requires checking roof rack compatibility
- No included mounting tools, may need additional accessories
Best for: Investigators who need large, secure, weatherproof storage for extensive gear on long trips or remote sites
Not ideal for: Investigators with compact vehicles or limited roof space, as its size and weight may be challenging to manage
- Dimensions:70” L x 31” W x 15” H
- Capacity:17.7 Cubic Feet
- Weight Capacity:165 lbs
- Material:Impact-resistant ABS
- Opening:Dual side
- Compatibility:Fits most roof racks including round, square, and aerodynamic crossbars
Bottom line: This cargo box is ideal for investigators who need maximum capacity and security for extended outdoor operations.
Thule Motion 3 Rooftop Box
The Thule Motion 3 stands out for its streamlined, aerodynamic profile that minimizes drag, which is a notable advantage over bulkier options like the SportRack Vista XL. Its quick-mount PowerClick system with a torque indicator simplifies installation, ensuring secure attachment every time—crucial for investigators who set up in remote locations. The interior accessories, such as lighting and a protective liner, add convenience during gear retrieval in low-light conditions. Compared to the more basic 70 Inch Cargo Box, the Thule offers enhanced ease of use and a sleeker look, but it comes at a higher price point and provides limited internal capacity details. Proper mounting is essential to prevent security issues, especially on rough terrains. This pick makes the most sense for investigators valuing advanced features and ease of installation over maximum size. It may be less suitable for those on a tight budget or needing the largest possible cargo space.
Pros:- Aerodynamic design reduces fuel consumption
- Easy to install with secure mounting system
- Includes interior lighting, liner, and storage cover
- Automatic locking with security indicators
Cons:- Higher cost compared to simpler models
- Limited internal capacity details
- Requires proper mounting to ensure security
Best for: Investigators seeking a high-quality, easy-to-install cargo box with added convenience features
Not ideal for: Budget-conscious investigators or those requiring the largest capacity available, since it is more expensive and has limited internal capacity info
- Design:Wing-shaped profile with forward-leaning nose
- Mounting System:PowerClick quick-mount with torque indicator
- Locking System:SlideLock with separate lock and open functions
- Accessories:Interior box light, protective liner, storage cover
Bottom line: This cargo box is ideal for investigators who prioritize ease of use, security, and advanced features over maximum volume.
SportRack Vista XL Rear Opening Cargo Box
The SportRack Vista XL offers a substantial 18 cubic feet of storage, making it well-suited for investigators with extensive gear needs. Its rear-opening design facilitates access when there’s limited space at the vehicle’s side, though it can be less convenient in tight parking situations compared to side-opening models like the 70 Inch Cargo Box. Its UV-resistant ABS construction withstands exposure to harsh elements, and the straightforward, tool-free mounting system simplifies setup. While the 100-pound weight limit is adequate for most investigation gear, heavier or bulkier items might require careful packing. Compatibility depends heavily on roof rack dimensions, so check your vehicle’s rack spacing first. This cargo box is best for investigators prioritizing maximum capacity and straightforward installation, especially in open spaces. It may be less ideal for tight urban environments or those needing quick side access.
Pros:- Largest capacity at 18 cubic feet
- Durable UV-resistant ABS construction
- Easy to mount and remove without tools
- Includes lock for security
Cons:- Rear opening may be less accessible in tight spaces
- Maximum weight limit of 100 pounds
- Compatibility depends on roof rack type
Best for: Investigators needing a large, durable cargo solution that’s easy to mount and remove, especially in open, spacious settings
Not ideal for: Investigators working in dense urban areas or tight parking spots where rear access could be obstructed
- Capacity:18 cubic feet (510 L)
- Material:UV-resistant ABS
- Dimensions:63 x 38 x 19 in / 160 x 96.5 x 48 cm
- Max Weight Capacity:100 pounds
- Min-Max Crossbars Spacing:23 5/8 – 29 3/4 in
- Opening:Rear
Bottom line: This cargo box makes sense for investigators who need maximum storage capacity with straightforward, tool-free mounting in open areas.

How We Picked
These products were evaluated based on capacity, accessibility, security features, weather resistance, and overall build quality. Ease of installation and how well they accommodate investigation gear—often bulky or sensitive—were key factors. We aimed to identify options that balance performance with value, prioritizing models that offer reliable durability and convenient access. The ranking reflects a combination of user-friendly features, security, and capacity, ensuring each pick serves a specific type of investigator or scenario best.Factors to Consider When Choosing Best Rooftop Cargo Box For Investigation Gear
Choosing the right rooftop cargo box for investigation gear involves more than just capacity. It’s important to consider how accessible the gear needs to be, especially during field operations where quick access can be critical. Security features prevent theft or tampering, while weatherproofing protects sensitive equipment. The size and weight capacity determine what kind of gear can be safely transported without risking damage or overloading your vehicle. Understanding these factors helps avoid common pitfalls like underestimating needed capacity or choosing a model lacking security features.Capacity and Size
For investigation gear, capacity is a primary consideration. Larger boxes can hold more equipment, but they also add weight and may affect vehicle handling. Assess your typical gear size and volume needs, and choose a box that offers enough space without being unwieldy. Remember that a larger box might require a more powerful roof rack and can impact fuel efficiency. Balance your storage requirements with ease of use and vehicle compatibility.
Accessibility and Opening Mechanism
Quick and easy access to gear is vital during investigations. Dual-side opening models allow you to retrieve equipment from either side of the vehicle, which is especially useful in tight parking spots or when multiple team members need access. Consider the opening mechanism—hinged, clamshell, or side-opening—and how it fits with your operational setup. Ease of opening and closing, especially with bulky gear, can significantly affect efficiency.
Security Features
Investigation gear often includes sensitive or expensive equipment, making security a top priority. Look for models with sturdy locks and tamper-proof features. Some boxes also come with reinforced shells or anti-theft mounting systems. Investing in a secure box helps protect your gear from theft, especially when leaving your vehicle unattended during field work or at remote locations.
Weatherproofing and Durability
Investigation environments can be unpredictable, so a weatherproof cargo box is essential. Waterproof shells, sealed edges, and UV-resistant materials extend the lifespan of your gear. Consider the climate where you’ll be operating—rain, snow, mud—and choose a model that offers reliable protection against these elements. A durable construction also ensures the box withstands rough handling and long-term exposure.
Weight Capacity and Vehicle Compatibility
Always check the weight capacity of the cargo box and ensure your vehicle’s roof can support it. Overloading can compromise safety and vehicle handling, especially with investigation gear that can be bulky and heavy. Match the box’s capacity with your gear load, and verify compatibility with your roof rack system. Proper weight distribution preserves vehicle stability and prolongs the life of your roof components.
Frequently Asked Questions
How do I determine the right capacity for my investigation gear?
To choose the correct capacity, start by cataloging all the gear you typically carry, including bulky or fragile items. Measure their dimensions and estimate the total volume needed. Add extra space for future gear or accessories. Remember, a box that’s too small may force you to leave items behind, while one that’s too large can be cumbersome and affect vehicle performance. Striking a balance ensures you have enough room without sacrificing stability or ease of use.
Are all rooftop cargo boxes weatherproof enough for investigation work?
Not all cargo boxes are equally weatherproof. Look for models with sealed edges, waterproof shells, and UV-resistant materials. These features help protect sensitive investigation equipment from rain, snow, and sun damage. If you frequently operate in harsh weather, investing in a fully waterproof and durable box will reduce the risk of gear damage and extend the life of your equipment.
Is dual-side opening worth it for investigation gear?
Dual-side opening provides significant convenience, especially during quick-access situations common in investigations. It allows you to retrieve or store gear from either side of your vehicle, saving time and reducing hassle. However, these models can be more complex or slightly heavier, so consider whether the added accessibility outweighs the potential increase in weight or cost based on your operational needs.
How do I choose between hard-shell and soft-shell rooftop cargo carriers?
Hard-shell carriers generally offer better security, weather protection, and durability, making them suitable for investigation gear. Soft-shell options are lighter and easier to install but may lack the same level of security or weatherproofing. For sensitive or valuable equipment, hard-shell models are usually the safer choice, despite their higher cost and weight.
What safety considerations should I keep in mind when installing a rooftop cargo box?
Proper installation is crucial for safety. Ensure the box is compatible with your roof rack system and is securely mounted according to manufacturer instructions. Regularly check the mounting hardware for signs of wear or loosening, especially after long trips or rough terrain. Overloading or improper installation can affect vehicle handling, so always stay within the recommended weight limits and verify the stability before driving.
Conclusion
For most investigation teams, the Rooftop Cargo Box Carrier with 14 cubic feet offers a balanced mix of accessibility, security, and size — making it the best overall choice. Those needing larger capacity might prefer the Perflex Exclusive Rooftop Cargo Box for its extra volume, though it comes with added weight. If budget is a concern, the SportRack Vista XL provides reliable security and weatherproofing at a lower price point. For newcomers, models with simpler installation and straightforward access like the Yakima DeepSpace 10 make excellent starting points. For high-end, feature-rich options, the Thule Motion 3 stands out as a premium choice for serious investigation professionals.






