Choosing the Right Roof Box

We have a wide range of roof boxes available, and if you’re unsure which one to choose, the guide below should help you decide.

Width

• Narrow roof boxes allow you to mount a kayak, bike carrier, or similar alongside the box. The narrower the box, the more you can carry beside it—but this does reduce the box’s internal capacity.

• Wide roof boxes give you maximum storage space inside but prevent you from carrying other items alongside.

Height

• Taller roof boxes generally offer greater capacity.

• Lower, streamlined roof boxes reduce storage space but are more aerodynamic, helping with fuel efficiency.

Vehicle Height

• If you drive a taller vehicle (SUV/MPV) and find reaching across the roof tricky, a dual-opening roof box is the most convenient option, allowing easy access from either side.

Length

• Longer roof boxes provide more capacity and are ideal for items such as skis or fishing gear.

• Make sure the box suits your vehicle:

  • You should be able to fully open your boot with at least an inch or two of clearance from the box.

  • A slight overhang at the front isn’t a problem, but excessive overhang can reduce visibility and affect aerodynamics, which impacts fuel consumption.

• A good rule of thumb: measure from your fully opened boot lid to the top of your windscreen—this gives you an idea of the maximum suitable roof box length.