What to Think About When Purchasing a Roof Cargo Box for a New Vehicle
Updated 10/27/2025 | Published 03/06/2025
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Question:
Hello, my wife just got a new car and were thinking about using one of these new Thule roof boxes. Can you tell me which new Thule would be best? TH27SA, TH47SA, TH67SA or TH77SA?
asked by: Renzo G
Expert Reply:
Hey Renzo, thanks for reaching out!
Choosing the correct cargo box depends on the size of your vehicle and what kind of space you have to work with. For example, the Thule Force 3 L # TH77SA is 75-1/8" long x 24-3/4" wide x 16-3/4" tall while the Thule Force 3 XXL # TH27SA is 91-1/2" long x 35-1/8" wide x 18" tall so it gives you more cargo space, but it also is more likely to interfere with a rear hatch if that's something you all have.
If you can let me know what vehicle you all purchased and if it already has a roof rack or not, I'd be more than happy to make more of a specific recommendation!
Product Page this Question was Asked From
Thule Force 3 Sport Rooftop Cargo Box - 11 cu ft
- Roof Box
- Aero Bars
- Factory Bars
- Round Bars
- Square Bars
- Long Length
- High Profile
- Large Capacity
- Dual Side Access
- Black
- Thule
more information >
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on Roof Box
Jon G.
10/27/2025
Hey Renzo, what ended up working for your wife’s new car with the Thule roof boxes? Once you had a chance to check the roof space or rack setup, did one of the Force 3 sizes fit better? Your update could make it easier for others choosing between those models.