10 Best Roof Cargo Boxes 2025 in the United States

The Thule Force 3 is a robust choice for those in need of a large capacity roof cargo box. With its generous 21 cubic feet of storage, it is ideal for families or individuals requiring substantial space for road trips or outdoor activities. The box is designed to be aerodynamic, which should help minimize wind resistance and noise when driving. Made from durable plastic, the box is built to withstand daily wear and tear, making it suitable for active lifestyles and different weather conditions.

One of its standout features is the dual-sided opening, allowing for easy access from either side of the vehicle, a convenient option when packing or unpacking your cargo. The quick and intuitive mounting system ensures the box is securely attached and provides a clear indication when correctly mounted, making installation straightforward even for those not mechanically inclined.

Security is well-handled with the SlideLock system, which separates the locking and opening functions, ensuring that the lid is securely closed and locked, providing peace of mind during travel. Additionally, the unit's weatherproof design protects contents from the elements. However, at 53.5 pounds, it is on the heavier side, which might require some assistance during installation. Given its features, it’s best suited for SUVs, trucks, and larger vehicles, though its size might be overkill for smaller cars with less roof space.

In conclusion, the Thule Force 3 seems well-designed for those who need a reliable and spacious roof cargo solution, but potential buyers should consider their vehicle's compatibility with its size and weight.

The Thule Motion 3 Rooftop Box is a large, hard-shell cargo carrier with a spacious 14-cubic-foot capacity, making it suitable for families or anyone needing extra storage on road trips. Its wing-shaped design and forward-leaning nose help reduce wind drag, which can improve fuel efficiency compared to bulkier boxes. Made from sturdy aluminum, it promises durability, though it is not water-resistant, so care is needed in heavy rain. Weighing 23.5 kg, it’s relatively easy to handle given its size.

The PowerClick quick-mount system simplifies installation by giving a clear click when properly secured, making it user-friendly and ensuring safety on the road. Security is enhanced by the SlideLock system, which automatically locks the lid and visually confirms when it’s closed, giving peace of mind that belongings are safe. A wide handle makes opening and closing smooth with one hand, adding to convenience. Optional accessories like interior lighting and protective liners add value but come separately.

The box fits universally on most roof racks, though its large size means you should check your vehicle’s roof space before buying. It represents a reliable, aerodynamic cargo box with good security and ease of use, especially suited for longer trips or when carrying bulky gear. Just keep in mind the lack of water resistance if you often face wet weather.

The SportRack Vista XL Rear Opening Cargo Box offers an impressive 18 cubic feet of internal cargo capacity, making it a great choice for family trips or transporting large items. The box is constructed from durable UV-resistant ABS material, ensuring it can withstand harsh weather conditions and long-term use. Weighing just 28 pounds, it's relatively lightweight for its size, which aids in easier installation and handling.

The rear opening design provides convenient access to your belongings while keeping you safe from traffic. The tool-free mounting hardware simplifies installation and removal, fitting well with SportRack systems, square bars, round bars, and most factory racks, though it's always wise to check the fit guide for compatibility. For security, the box includes a key and lock to secure both your contents and the cargo box itself.

One downside is the maximum weight capacity of 100 pounds, which may be limiting for some users. Additionally, aerodynamics could be affected depending on your vehicle's design, potentially impacting fuel efficiency. Despite these minor drawbacks, the SportRack Vista XL is a reliable and practical cargo box with a user-friendly design, suitable for those needing extra storage space on their travels.