10 Best Rooftop Cargo Boxes 2026 in the United States

The Yakima SkyBox NX XL is a hard shell rooftop cargo box offering a spacious 18 cubic feet of storage, which can comfortably fit gear for up to four campers or long items like skis and snowboards up to 195 cm. It weighs 53 pounds, which is moderate and should be manageable for most users when installing it on the roof. The box is made of durable plastic with a sleek, nano-textured finish designed to resist scratches and wear, though it is not water resistant, so protection from heavy rain or water exposure could be a concern.

One of its standout features is the dual-sided access, allowing you to load and unload from either side of the vehicle, making it very convenient especially in tight parking spaces. The full metal handle and SKS lock provide solid security for your belongings and help lock the box to the vehicle, giving peace of mind during travel. The mounting system is roof-mounted, typical for this type of product.

Aerodynamically, while the product brief does not detail wind resistance, the low-profile design and smooth surface suggest it aims to reduce drag, potentially minimizing impact on fuel economy. The flattened interior floor maximizes usable space inside, so you won’t lose room to awkward shapes or supports. The box is best suited for dry conditions or with additional waterproofing measures. The Yakima SkyBox NX XL is a great choice if you need large, secure, and easily accessible rooftop storage for camping or winter gear, though the weight and lack of water resistance should be considered when planning your trips.

The Thule Force 3 (Size M) rooftop cargo box offers a solid balance of practicality and quality for anyone looking to expand their vehicle’s storage space. With 14 cubic feet of capacity, it’s a good fit for small families or individuals needing extra room for gear on trips. The box weighs about 32.6 pounds, which is manageable when installing or removing it. Made from durable plastic, it’s designed to withstand daily use and various weather conditions, though it’s water-resistant rather than fully waterproof, so some care around heavy rain is advisable.

Aerodynamics play an important role in minimizing wind noise and drag while driving, and this model features a sleek shape that helps keep the ride quieter and more fuel-efficient compared to boxier designs. The mounting system is user-friendly with a tool-free install and a clear click indicator, making it easy to attach securely even if you’re not handy with tools. Accessibility is enhanced by the dual-sided opening, letting you load or unload cargo from either side of your car, which is very convenient in tight parking spaces.

Security is handled well with the SlideLock system, which automatically locks the lid and shows when it’s securely closed, giving peace of mind when you leave your vehicle. The box fits most SUVs, trucks, cars, and even electric vehicles, making it versatile for different drivers. Since it’s water-resistant but not fully waterproof, heavy rain or deep snow might require extra caution to keep your items dry. While the 14 cubic feet size suits many, those needing lots of space might find it limiting compared to larger options. This makes the Thule Force 3 a reliable, easy-to-use rooftop cargo box that meets the needs of active users looking for moderate extra storage with good security and convenient access.

The Thule Force 3 in size XL offers a spacious 18 cubic feet capacity, making it a great choice if you need extra room for luggage or gear on trips, especially for SUVs, trucks, cars, and EVs. It weighs 66 pounds, which is fairly typical for a hard-shell cargo box and balances durability with manageable weight. Made from sturdy plastic, it promises durability and weather resistance to protect your belongings in various conditions, though it’s described as water-resistant rather than fully waterproof. Its aerodynamic design helps reduce wind noise and drag, which is beneficial for fuel efficiency and quieter rides.

The mounting system is user-friendly and tool-free, featuring a clear click indicator to ensure the box is securely attached, which is helpful for quick installation without hassle. Accessibility is enhanced by dual-sided opening, letting you reach your cargo from either side of the vehicle—this is especially convenient in tight parking spots. Security is thoughtfully addressed with Thule’s SlideLock system that automatically locks the lid and shows a clear indicator when it’s secure, giving peace of mind against theft.

The box is well-built and tested for road safety, but the water resistance level suggests caution in heavy rain or deep puddles. Its size and weight mean it requires some effort to mount and remove, so it might not be ideal for those seeking ultra-light or very compact options. This cargo box is suited for active users looking for a durable, spacious, and easy-to-use rooftop storage solution with good security and weather protection.