When it comes to luxury SUVs, not many companies can compete with Mercedes. The Mercedes GLB, in particular, is in a class of its own. It has an impressive 27 cu ft. trunk. However, you might need to install a roof box to haul extra cargo.
Roof boxes don’t come cheap, but if you have a growing family or have a knack for hitting the road every weekend, they are definitely worth the premium bucks.
Not only do they offer additional storage room, but they make long drives safer by improving rear visibility.
Here are the best roof boxes you’ll need for your GLB.
- Best Overall - Thule Motion XT Rooftop Cargo Carrier
- Best For Skis and Snowboards - Thule Pulse Rooftop Cargo Box, Large
Table of Contents
Mercedes Benz GLB Roof Box Overview










Last update on 2023-04-19 / Affiliate links / Images from Amazon Product Advertising API
The Best Roof Boxes for Mercedes Benz GLB
1. Thule Motion XT Rooftop Cargo Carrier
- Roof-mounted cargo box provides 16 cubic feet of additional packing space
- Designed for optimal space efficiency, aerodynamics, and vehicle fit
- Quick-mount system "clicks" when roof box is secure and properly mounted
- Dual-side opening for quick access from either side of the car
- Easy to open and close with grip-friendly handles and supporting lid-lifters
Last update on 2023-04-19 / Affiliate links / Images from Amazon Product Advertising API
2. Thule Pulse Rooftop Large Cargo Box
- Functional rooftop cargo box provides 16 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
Last update on 2023-04-14 / Affiliate links / Images from Amazon Product Advertising API
3. Malone Auto Racks Cargo Box
Last update on 2023-04-15 / Affiliate links / Images from Amazon Product Advertising API
4. Goplus Waterproof Cargo Box
- Perfect for Road Trip---Take the cargo box to the park, the beach, the sports field, or any place you need to store. Works on all vehicles with rack, suitable for cars, vans, SUVs, etc. Sleek aerodynamic design to reduce drag and has less noise.
- 14 Cubic Feet Cargo Box with Car Trunk Organizer---With the large capacity, the roof cargo box can help you securely carry 14 cubic feet worth of essentials, can increase vehicle cargo space without impeding on passenger comfort, more capacity, more pleasure! Included trunk organizer comes with 3 different size compartments, 12 side bags which will help you organize sundries with ease.
- Robust and Security Design---The roof cargo box is designed to withstand heavy use in different types of weather conditions. The metal lid stiffeners at the bottom makes the roof box more stable and safer. With the double-lock design for protecting your valuables.
- 【Note】This product is suitable for vehicles with rack (Compatible with 17” to 22.8” wide rack, the width of the crossbar should be less than 3.1 inches and the thickness should be less than 1.0 inches)
- High Quality Material---The roof box is manufactured from sturdy ABS and PC material for long-lasting use, able to protect your valuables from exposure to the elements and can load 165 lbs capacity, suitable for round, square, factory and most aerodynamic bars.
Last update on 2023-04-15 / Affiliate links / Images from Amazon Product Advertising API
5. SportRack Horizon Alpine Cargo Box
- 16 cubic foot (453 L) cargo capacity
- Made from rugged, impact resistant ABS material
- Passenger side opening for easy access away from traffic
- Easy to install or remove using the quick release attachment kit
- Holds 4-6 pairs of skis (up to 178 cm) or 3-4 snowboards
Last update on 2023-04-15 / Affiliate links / Images from Amazon Product Advertising API
Conclusion
All the above roof boxes are a perfect fit for the Mercedes Benz GLB. However, one noticeable difference is that the openings are different. While passenger-side boxes are still good, rooftop carriers with dual opening systems are easier to access no matter where you have packed your vehicle.
Additionally, during installation or removal, it’s much easier to fasten the bolts, unlike when you have only a single side opening. Nonetheless, passenger-side openings are meant to protect the user, as you can only access your gear away from oncoming traffic.