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Thule Force 3 Roof Boxes - Durable, Spacious and Easy to Fit.
The Thule Force 3 roof box range is built for the active family, offering a robust solution for year-round use. An everyday solution for family trips, camping and transporting sports equipment. Offering practical integration with modern vehicles, the Force 3 not only boosts your storage capacity but also complements the aerodynamics of today's vehicles. Designed for convenience, accessing your gear is easy and secure. Equipped with the PowerClick quick-mount system, which ensures a fast and reliable fit.
Why Choose the Thule Force 3?
- PowerClick quick-mount system - fast, tool-free installation with built-in torque indicator
- DualSide opening - load and unload from either side of the car
- SlideLock security - separate locking and opening functions for maximum safety
- AeroSkin textured lid - tough, stylish finish designed for all year-round use
- Up to 75kg load capacity - perfect for luggage, camping gear and sports equipment
Which size of Thule Force 3 do I need?
Choosing the right roof box depends on your vehicle size and what you plan to carry. As a general guide.....
- Force 3 S / L Sport (300L) - Ideal for hatchbacks and everyday luggage
- Force 3 M / L / XXL Sport (400-450L) - Best all-round size for family trips
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Force 3 XL (500L) - Great for larger cars and bulky holiday gear
Roof boxes come in a variety of sizes to suit any budget. Not sure which Roof Box is right for you? Please take a look at our roof box guide for additional information to help you choose the ideal cargo box.
Looking for Roof Bars? Find compatible options here
Frequently Asked Questions – Thule Force 3 Roof Boxes
What is the difference between Thule Force 3 and Motion 3?
The Thule Force 3 is designed as a rugged, value-focused roof box with excellent everyday practicality. It includes the same PowerClick quick-fit mounting, dual-side opening and secure SlideLock system as the Motion 3, but at a more affordable price point. The Motion 3 features a more premium aerodynamic shape and interior finish, while the Force 3 delivers outstanding space and durability for families and regular travellers.
Which Thule Force 3 size is best for a family?
For most families, the Force 3 L or XL is the ideal choice. These sizes provide enough space for suitcases, pushchairs and camping gear while still fitting comfortably on hatchbacks, estates and SUVs. If you need maximum capacity for long trips or ski equipment, the Force 3 XXL offers the largest storage option.
Does the Thule Force 3 fit all cars?
The Thule Force 3 will fit the majority of vehicles when used with compatible roof bars. You should check your vehicle’s maximum roof load, the distance between roof bars and rear boot clearance before choosing a size. Our team can help confirm the correct setup for your car.
Is the Thule Force 3 waterproof?
Yes. The Thule Force 3 is fully weather-resistant and built for year-round use. The durable AeroSkin lid and secure sealing help protect your luggage from rain, road spray and dirt in all driving conditions.
How easy is the Thule Force 3 to fit?
The Force 3 uses Thule’s PowerClick mounting system, allowing tool-free installation in minutes. The built-in torque indicator clicks when the box is correctly secured, giving confidence that it is safely fitted to your roof bars.
Thule Force 3 Roof Box Size Comparison
Compare the Force 3 range by volume, dimensions and ski length. Specs are pulled from each product description.
| Model | Volume | External dimensions | Internal dimensions | Max ski length | Load capacity | Weight |
|---|---|---|---|---|---|---|
| Thule Force 3 L Roof Box 450L | 450L | 195 x 84.5 x 42.5cm | 187 x 73 x 37cm | 175cm | 75kg | 18.7kg |
| Thule Force 3 M Roof Box 400L | 400L | 175 x 81 x 44cm | 167 x 69 x 38cm | 155cm | 75kg | 16.5kg |
| Thule Force 3 L Sport Roof Box 300L | 300L | 191 x 63 x 42cm | 183 x 51 x 36.5cm | 175cm | 75kg | 14.8kg |
| Thule Force 3 S Roof Box 300L | 300L | 140 x 90 x 38cm | 131 x 78 x 35cm | — | 75kg | 14.8kg |
| Thule Force 3 XL Roof Box 500L | 500L | 215 x 87 x 47cm | 207 x 75 x 37cm | 195cm | 75kg | 22kg |
| Thule Force 3 XXL Sport Roof Box 450L | 450L | 232 x 79 x 44cm | 224 x 58 x 38cm | 215cm | 75kg | 18.7kg |
Thule Force 3 L Roof Box 450L
- Volume
- 450L
- External dimensions
- 195 x 84.5 x 42.5cm
- Internal dimensions
- 187 x 73 x 37cm
- Max ski length
- 175cm
- Load capacity
- 75kg
- Weight
- 18.7kg
Thule Force 3 M Roof Box 400L
- Volume
- 400L
- External dimensions
- 175 x 81 x 44cm
- Internal dimensions
- 167 x 69 x 38cm
- Max ski length
- 155cm
- Load capacity
- 75kg
- Weight
- 16.5kg
Thule Force 3 L Sport Roof Box 300L
- Volume
- 300L
- External dimensions
- 191 x 63 x 42cm
- Internal dimensions
- 183 x 51 x 36.5cm
- Max ski length
- 175cm
- Load capacity
- 75kg
- Weight
- 14.8kg
Thule Force 3 S Roof Box 300L
- Volume
- 300L
- External dimensions
- 140 x 90 x 38cm
- Internal dimensions
- 131 x 78 x 35cm
- Max ski length
- —
- Load capacity
- 75kg
- Weight
- 14.8kg
Thule Force 3 XL Roof Box 500L
- Volume
- 500L
- External dimensions
- 215 x 87 x 47cm
- Internal dimensions
- 207 x 75 x 37cm
- Max ski length
- 195cm
- Load capacity
- 75kg
- Weight
- 22kg
Thule Force 3 XXL Sport Roof Box 450L
- Volume
- 450L
- External dimensions
- 232 x 79 x 44cm
- Internal dimensions
- 224 x 58 x 38cm
- Max ski length
- 215cm
- Load capacity
- 75kg
- Weight
- 18.7kg