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Best Roof Cargo Boxes in the USA 2026
Rooftop cargo boxes and cargo baskets for extra storage on your next road trip or camping adventure.
#1
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Editor's Choice
Thule · Roof Cargo Boxes
4.8
The Thule Motion XT XL is the biggest and best roof cargo box available in the US. At 21.5 cubic feet it swallows ski bags, camping gear, and bulky luggage with ease. Dual-side opening makes loading from either side of the car a breeze.
Massive 21.5 cu ft capacity
Opens from both sides of the car
Very expensive
$1,299
approx. USD
Editor's Choice
Thule Motion XT XL
Thule · Roof Cargo Boxes
$1,299
approx. USD
4.8
Overview
The Thule Motion XT XL is the biggest and best roof cargo box available in the US. At 21.5 cubic feet it swallows ski bags, camping gear, and bulky luggage with ease. Dual-side opening makes loading from either side of the car a breeze.
Pros
- Massive 21.5 cu ft capacity
- Opens from both sides of the car
- Power-click quick mount system
- Sleek, aerodynamic lid design
- Keyed-alike with WingBar locks
Cons
- Very expensive
- Requires a wide vehicle to open fully
- Adds significant height to vehicle
Specifications
| Volume | 21.5 cu ft |
| Dimensions | 90 × 36 × 17 in |
| Load Capacity | 165 lb |
| Opening | Dual-side |
| Locking | Power-click central locking |
| Fit | T-slot and square bars |
| Color | Black Glossy / Black Matte / White |