Car Accessories & Parts

Curated picks

Roof Cargo Boxes

Add weatherproof storage for road trips and gear

A roof cargo box bolts to your crossbars and creates a sealed space for luggage, camping gear, and bulky items. It frees up cabin room and keeps contents protected from rain and wind on long drives.

Boxes vary in capacity, opening style, and crossbar compatibility, so fit and volume matter. We curate top-rated picks on Amazon so you can compare sizes, mounting systems, and access before your next trip.

Top picks

Popular roof cargo boxes

See all roof cargo boxes on Amazon →

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What to look for

  • Fits your crossbar spacing
  • Lockable, weather-sealed lid
  • Aerodynamic low-profile shape
  • Capacity matched to your gear

FAQ

Do I need roof rails for a cargo box?
Most cargo boxes mount to crossbars rather than directly to the roof. If your vehicle lacks them, you will need compatible crossbars before installing a box.
How much can a roof cargo box hold?
Capacity is listed in cubic feet, and you should also respect your vehicle roof weight limit. Distribute heavier items low and check both the box and roof ratings.
Will a cargo box affect fuel economy?
Added height and weight can increase drag and reduce mileage, especially at highway speeds. Low-profile, aerodynamic shapes help limit the impact.