10 Best Roof Cargo Boxes 2026 in the United States

The Yakima SkyBox NX Extra-Large Cargo Carrier Box offers a spacious solution for transporting gear with 18 cubic feet of capacity, making it ideal for families or group trips. Its dual-sided opening is convenient, allowing access from either side of your vehicle, which makes loading and unloading easier. The removable torque limiting knob ensures a secure installation, while integrated tie down points help keep your belongings in place during transit. Additionally, the included SKS locks provide an extra layer of security, ensuring that your gear is safe from theft.

The stylish NX nano texture on both the lid and base gives it a sleek, modern look, enhancing your vehicle's aesthetic as well. The box fits all Yakima StreamLine crossbars and most factory or aerodynamic crossbars, adding to its versatility. The box also offers optimized hatch clearance, ensuring it fits snugly without obstructing access to the car's trunk. However, the product is made of plastic, which might not be as durable as some metal counterparts. It is also not water-resistant, which could be an issue in wet weather conditions. Weighing 53 pounds, it may be slightly heavy for some users to manage alone.

The Yakima SkyBox NX XXL is a hard shell roof cargo box designed for families and outdoor enthusiasts needing extra storage on their vehicle roof. It offers a generous 22 cubic feet of space, enough to hold gear for up to five campers or skis as long as 215 cm, making it suitable for large trips or bulky equipment. The dual-sided opening is a handy feature that makes loading and unloading easier from either side of the car. Built from durable plastic with a sleek, textured finish, it looks modern while providing sturdy protection for your belongings. Its security is enhanced by push-button SKS locks, which offer reliable protection against theft.

This model is not water-resistant, so it may not fully protect your gear in heavy rain. The mounting system is a roof mount type, designed to fit most vehicles securely. Although the box is solid and practical, it is relatively heavy when loaded, which could affect fuel efficiency due to added weight and wind resistance.

This cargo box represents a strong choice for those needing a spacious, secure, and stylish storage solution for travel and camping, but it may require some care in wet weather.

The Thule Motion 3 XXL rooftop cargo box offers a spacious 21 cubic feet of storage, making it ideal for families or travelers needing extra room for luggage or gear. It supports up to 165 pounds, which is sufficient for most vehicle roof racks without risking damage. The box is made from durable aluminum, ensuring solid protection for your items. However, since it is not water resistant, users should be mindful when driving in heavy rain to keep valuables dry.

Its aerodynamic, wing-shaped design helps reduce wind drag and may improve fuel efficiency compared to bulkier boxes. Mounting is a standout feature with the PowerClick quick-mount system that confirms secure attachment through a torque indicator click, allowing for tool-free and fast installation. Opening and closing is smooth and user-friendly due to its wide handle and one-handed operation. The SlideLock system adds security by locking the lid and providing visual confirmation that it’s closed properly.

Although the box is large and robust, it weighs around 35 kilograms, so handling it alone can be challenging when loading or removing. Accessories such as interior lighting and protective liners enhance convenience but are sold separately. This cargo box is well suited for users seeking a reliable, easy-to-use, and roomy carrier with solid security for road trips and outdoor adventures.