Subaru is not really known for SUVs; that is why buying a roof box for the Subaru Ascent might be challenging. The Ascent has a cargo capacity of just 17.8 cu ft.’ which might not be enough to accommodate all your luggage.
Luckily, due to the cars’ size, its roof can fit even the biggest roof boxes currently in the market.
This means you more double your existing space. For instance, one of the biggest roof boxes in the market (Thule Force XT) can comfortably sit on the car’s roof without impeding your driving experience.
This box will provide you with an extra 22 cu ft. of storage space to store all the gear you might need on your next roof box. If you don’t want a big product you can still scale down and choose one that fits your storage needs and budget.
To help you make an informed decision, below we have highlighted some of the best roof boxes available in the market all with different selling points.
- Best Overall - Thule Force XT Rooftop Cargo Box XXL
Table of Contents
Subaru Ascent Roof Boxes Overview






Last update on 2023-11-26 / Affiliate links / Images from Amazon Product Advertising API
The Best Roof Box For Subaru Ascent
1. Thule Force XT Rooftop Cargo Box XXL
- An oversized, versatile roof-mounted cargo box for everyday use.Closure type :Lock. Shell type : Hard.
- Provides 22 cubic feet of additional packing space
- Designed to fit a wide range a vehciles with maximum space efficiency
- Quick-mount system "clicks" when roof box is secure and properly mounted
- Dual-side opening for easy access to all areas of the box, from either side of the vehicle
Last update on 2023-11-26 / Affiliate links / Images from Amazon Product Advertising API
2. INNO PHANTOM 466 Cargo Box
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3. SportRack Vista XL Cargo Box
- 18 cubic foot (510 L) internal cargo capacity
- Made from durable UV-resistant ABS material
- Rear opening for easy access away from traffic
- Tool-free mounting hardware for easy installation and removal
- Includes key and lock to secure contents in the box, and the box to your rack
Last update on 2023-11-26 / Affiliate links / Images from Amazon Product Advertising API
4. JEGS Rooftop Cargo Carrier
- Secure & protect your gear in this 18 cubic ft. HDPE plastic hard shell vehicle cargo carrier; high-capacity interior dimensions 57 L x 38 1/2 W x 17 3/4 H inches; aerodynamic design for fuel efficiency
- Weatherproof storage for your luggage with a four corner locking system, front latch, and weather-tight seal for ultimate car rooftop protection and security
- Easy & convenient loading and unloading from either side of the car make for smooth travel and hassle-free storage
- No tools required, easy assembly and installation. All mounting hardware and simple instructions are included to get you safely on the road quickly
- Made in USA, limited lifetime guarantee. The JEGS car top carrier’s high-quality construction and performance give you peace of mind
Last update on 2023-11-26 / Affiliate links / Images from Amazon Product Advertising API
Conclusion
All the above roof boxes are well suited for SUVs such as the Subaru Ascent. Therefore, you can be sure that they will fit perfectly on your car. Since roof boxes can be expensive, you must buy one that will serve you for many years.
That is why we have selected products that are very versatile and can fit on most cars. Also, they are easy to install. This will make it easy for you to unmount the box and mount it on another car if the need arises.