When it is a matter of roof boxes, the name “Thule” always comes on top. Am I right or wrong?! Definitely right! Thule roof boxes are the perfect solution and great assistance for your traveling task. Since its inception, it has been ruling over the roof box market worldwide. Nevertheless, sometimes people struggle with how to install a Thule roof box in the car.
If you’re a vivid traveler, outdoor sports enthusiast, or a passionate family member who needs additional luggage, the Thule roof box might be a perfect solution for you. Besides, it is safe, quick, and superb in each way. This article will discuss how to install a Thule roof box in the car. Let’s go down to find out –
How to Fit a Thule Roof Cargo Box – Instructions and Guidelines
Almost all car experts recommend not traveling with an empty roof box on the head of the car. It will make scratches on the rooftop of the vehicle as well as make a negative impact on the fuel efficiency. The result? Your car’s durability gets affected and the fuel consumption increases badly. As a result, your cost of fuel will also widen significantly.
With that said, purchasing a roof cargo box that is quite effortless to attach and remove is highly recommended. Since Thule is an expensive and high-end product, you should focus on buying the box that you can fix and remove without hassle.
Additionally, a roof rack is a much-needed tool if you want to install a Thule roof cargo box in your vehicle.
Yes, some vehicles automatically contain built-in roof racks. However, many cars don’t possess a roof rack at all. In such a case, you’ll need to purchase a roof rack by yourself from the market. Henceforth, those roof racks are primarily compatible with Thule since this is the leader in the roof box market.
Things You Should Notice Before Purchasing a Roof Rack
Before purchasing a roof rack for your beloved Thule roof box, you have to check out some essential things such as –
- Before buying or installing the rack, ensure whether it is adjusted with the roof box or not. However, Thule is the leading brand in the roof box arena. Therefore, almost all the top roof rack companies manufacture a product that can accommodate Thule.
- Before installing the rack, closely check whether the locks are working or not. It’s imperative.
- Check whether the roof rack is strong enough to hold the roof box for an extended period.
Installing a Thule Roof Box in the Car

We guess you’ve purchased a sophisticated and correct roof rack for the Thule roof box. It’s time to install the box in the vehicle. Our guidelines will make it easy for you to install the Thule roof box in the car. Therefore, let’s keep reading the instructions before installing the roof box. Here we go –
Step 1
Your roof box possesses two canals on the bottom side. You can easily use these canals to take the box onto the rack. Perhaps, you could take somebody’s help to do it. The main point is you’ve to do the task thoroughly so the box won’t face any problems.
Place the box in a way that it keeps enough distance from roof antennas. On the other side, it will stay adequate space from the rear so that you can still open the partition without a problem.
When you put the correct roof rack in the vehicle, it’s time the roof box must sit forward with each crater side-by-side.
Step 2
The Thule roof box manufacturing company usually provides four roof bar securing sections. They will surely fit into the box without a problem. Further, In order to slot the brackets into the right place, lift the roof box cover and find the slots.
There should be four slots installed in the four corners of the Thule box. Now, you’ve to steadily shove the bracket through the slots and grip each one anti-clockwise until you hear a signature click. It means that you’ve made it! You are successful in placing the Thule box in the correct position.
In addition, the bracket mustn’t catch the roof of the vehicle.
Step 3
Now, you’re ready to load the Thule cargo box. Before putting the belongings in the cargo, you must check its overall roof load capacity. Henceforth, you can check this on the user’s manual or the car’s manufacturer’s website. Don’t put too many things on the roof box. Yes, Thule is a highly advanced product.
However, you should be cautious before making it jammed with too many belongings.
Step 4
If you completely load the Thule roof box, you can now close the cover of the box. But, be careful that nothing can prevent the cover from closing entirely. Afterward, close the lid with the lock mechanism.
How to Remove the Thule Roof Box?
Removing the Thule roof box isn’t that difficult job indeed. All you need to do is follow some simple tricks. Firstly, unfasten the knobs inside the box until the clasp fully opens. Furthermore, those who possess U-shaped bolts and plates must unfasten the knobs and remove the bolts.
After that, you will be able to remove the Thule roof box from the rack. You can do the whole task in the case of a small-sized Thule box. But, it will be safe if you hire any professional regarding a larger box.
How to Install a Thule Roof Box? – FAQs
Can I open my Thule roof box without a key?
No, it’s not possible. You can’t unlock a Thule roof box without a key. All the Thule roof box generally comes with two or three keys. So, you should keep one key in your ring while keeping the other keys in a safe place.
How can I repair my Thule roof box?
Thule roof box is a highly advanced product. It doesn’t damage easily. Nevertheless, you can repair it at home with liquid rubber, epoxy, etc., in case of minor damage. On the other hand, if the product has been damaged hugely, take it to a plastic repair center. You can get Thule’s replacement parts quite conveniently available on the market.
What are Thule roof boxes made of?
Thule roof boxes are made of high-quality ABS material. These are high-end elements that shaped the box much sturdier.
Is it necessary to get a roof rack for Thule boxes?
Of course, it is. Without a roof rack, it’s not possible to fit a Thule roof box. Besides, the box will be more secured with a roof rack. So, a roof rack is necessary for sure.
Final Say – It’s time to use the Thule!
Thule boxes are made of high durability, are long-lasting, and are convenient to use. Moreover, there’s basically zero complication in installing a Thule roof box in the car. But, you’ve to check out the overall capacity of the box before purchasing. On the other hand, don’t forget about using it effortlessly.
So, what’s your opinion regarding our article? Do you think it fills your knowledge? If yes, then please let us know about your experience. By the way, thanks for reading the article! Stay blessed and happy installing!
Best Seller List of Thule Roof Cargo Boxes:

- Functional rooftop cargo box provides 14 cubic feet of additional packing space
- Rugged and durable design keep contents protected
- FastGrip quick-mount system assembles in minutes
- Passenger-side opening for easy loading and unloading
- Central Locking system provides maximum safety
- Thule Comfort Key can only be removed when all locking points are securely closed
- Fits 3-5 snowboards (max length: 155 cm)
- External dimensions: 67 x 35 x 16 inches; Internal dimensions: 61 x 33 x 14 inches
- Load capacity: 110 lbs; Product weight: 34 lbs
- Height off crossbar: 16 inches. Fast and secure mounting

- 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
- Fits SportRack Rack Systems, square bars, round bars and most factory racks (check fit guide)
- Dimensions (LxWxH): 63 x 38 x 19 in / 160 x 96.5 x 48 cm
- Min-Max Crossbars Spacing: 23 5/8 - 29 3/4 in (60 - 75.5 cm)
- Max Weight Capacity: 100 pounds (45 kg)

- Offers durability and maintains a sleek appearance, designed to handle daily use and the demands of active lifestyles
- A quick, secure, and intuitive mounting system that indicates when the cargo box is safely attached with a simple click
- Provides easy access to your cargo from both sides of the vehicle, enhancing convenience and efficiency
- Extensively tested for road safety and durability in the Thule Test Center, ensuring top-notch quality and reliability
- SlideLock system with separate locking and opening functions, automatically locks the lid in place and indicates when the box is closed securely

- Wing-shaped profile with a dynamic, forward-leaning nose for reduced drag and fuel efficiency
- Sturdy lid design with a wide handle for smooth opening and closing with just one hand
- Available accessories include interior box light, protective box liner, and storage cover
- Easy to mount thanks to the PowerClick quick-mount system. The integrated torque indicator “clicks” when it’s properly mounted, ensuring fast and secure fitting
- SlideLock system with separate locking and opening functions, automatically locks the lid in place and indicates when the box is closed securely

- 8 cubic foot cargo capacity
- Compact roof box. ideal for small loads such as camping gear or gold clubs
- Space-saving design carries the load with room for other items on roof rack
- Sturdy U-bolts with reinforcement plates mount cargo box securely to the rack
- Passenger-side opening for easier loading and unloading
- Fits SportRack Rack Systems, square bars, round bars and most factory racks
- Includes lock to secure contents in the box
- Dimensions: 54 x 25 x 15.5 inches
- Weight: 19.85 pounds
- Load capacity: 75 pounds

- Universal Fit - This roof top storage box is universal fit for mounting to max 13 inches wide cross bar, please check the dimension before purchase.
- Spacious Capacity - Expand your vehicle's cargo capability significantly with 11 cubic feet of spacious storage and a robust 110 lb weight limit. Designed with a 14-inch wide opening for easy loading of large gear, this box provides ample room for luggage and essentials while keeping your passenger area comfortable and uncluttered. It's perfect for families, road trippers, or outdoor adventurers.
- Secure Lock, Stable Travel - The key lock system keeps your valuables safe. You can only remove the key after all lock points are fully secured. The belongings and luckages stay firmly in place inside during your drive, even on bumpy roads – no shifting or falling out. Open it from the passenger side for easy loading and unloading.
- Impact-Resistant Protection - Built with UV-protected, weather-resistant ABS, the cargo box shields contents from rain, sun, snow, and impacts while maintaining structural integrity in all conditions for reliable long-term performance.
- Overall Dimensions - 53" L x 34" W x 15" H | Capacity: 11 Cubic Feet and up to 110 LBS. Package includes [1] 53 inches length storage box, [2] security lock key, and [4] heavy duty tool free installation mounting brackets.

- 𝐔𝐧𝐢𝐯𝐞𝐫𝐬𝐚𝐥 - Roof cargo box is universal, fits for vehicles with cross bars only, and no tool assembly and installation. Can help increase cargo space without impeding on passenger comfort.
- 𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥 - Made of high quality ABS plastic, hardness and durable for long lasting using. Can help protect your contents from exposure to the inclement weather.
- 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐈𝐧𝐟𝐨 - 110 LBS loading bearing, strong support arm. Cargo box dimension: 53 inches X 34 inches X 15 inches, design with black textured surface finish and non-slip bottom.
- 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐚𝐥 𝐅𝐮𝐧𝐜𝐭𝐢𝐨𝐧 - Great design with secure key lock, gives us peace of mind when storing our luggage, and also easy opening and closing. Also it can use in variety weather such as rainy, dirt and freezing, etc,.
- 𝐏𝐚𝐜𝐤𝐚𝐠𝐞 𝐈𝐧𝐜𝐥𝐮𝐝𝐞𝐬 - 1 X cargo roof box, 1 X pair of keys, 4 X ABS plastic mounting brackets and mounting hardware as shown.



- Weather-resistant rooftop cargo bag
- Provides 16 cu ft of storage space
- Padded base protects vehicle from abrasion
- Easy access to gear via coated 3-sided zipper
- Large storm flaps help keep your gear dry during loading and unloading
- Twin compression straps secure cargo
- Bag is attached to roof rack crossbars or side rails with included heavy-duty, double stitched webbing straps
- Cargo bag folds down easily for compact storage
- Product weight: 5.5 lbs
Last Update : 2025-07-18