Roof Cargo Box Size Guide

Roof Cargo Box Size Guide

Are you ready for the ultimate road trip? With a roof cargo box, you can take all of your belongings along with you in style and comfort.

But what size should you get? This guide will help you find the perfect match for your vehicle so that you can enjoy an unforgettable journey!

The size of your cargo box is important because it affects how much stuff you’re able to bring with you. You don’t want to be stuck without something essential – or have too much space and end up paying for more than necessary.

So let’s look at some tips to make sure that your roof box fits perfectly on top of your car.

What Is A Roof Cargo Box?

A roof cargo box is a great way to transport your belongings when you’re on the go. It attaches to a roof rack and provides extra space for items that won’t fit in your vehicle’s interior.

With a Thule Motion XT or Yakima Skybox, you can take anything from camping gear to sports equipment wherever you need it without sacrificing precious cargo room inside the car.

The benefits of using a cargo box are clear: more storage capacity, easier access to your stuff, and total protection against rain and road grime. Plus, they look pretty cool too!

Whether you’re planning an outdoor adventure or simply need some added storage space for everyday errands, investing in one of these boxes will make life much easier – no more struggling with overstuffed backseats and trunks!

Halfords advice on roofboxes

Different Cargo Box Sizes

A cargo box is a great way to expand the storage capacity of your vehicle. Do you need extra room for camping gear, sports equipment or other items? A rooftop box could be just what you need!

The Thule Motion XT Rooftop Cargo Box offers 16 cubic feet of space and can hold up to 165 pounds of load. With that kind of space inside, it would be easy to store all kinds of things like tents, sleeping bags, chairs and more. What’s more, this model also features an aerodynamic design that helps reduce drag on the car when driving at high speeds, making it easier to handle.

Here are some key features:

  • Load Capacity – Up to 165 lbs
  • Cubic Feet of Storage – 16 cubic feet
  • Aerodynamic Design – Reduces drag on the car while driving

The Thule Motion XT provides plenty of room for whatever needs storing during your next road trip or adventure. With its sturdy construction and sleek design, this unit is sure to keep everything safe and secure while traveling.

Roof Cargo Carrier Requirements

When deciding to buy a roof box, there are several things you need to consider. Size is the most important factor when choosing a rooftop storage solution. You’ll want something that fits your car and its roof rails nicely. To help with this, we’ve put together a table of popular models and their respective sizes:

Roof Box ModelLength (inches)Width (inches)Height (inches)Capacity (ft3)
Thule Sidekick542515.58
Thule Pulse Medium67351614
Thule Pulse Large763316.516
Thule Force Sport74.7524.7516.7511
Thule Force XXL90.535.518.522
Thule Vector Alpine913512.513

Think about how much space you will need for all your items before buying your cargo box. If you want to store long items like skis then you’ll need to get a longer model. Typically a roof box is ideal for storing lightweight but bulky items. Leave the heaviest items for your trunk!

The smallest boxes will hold around 8 ft3 and the largest carriers go up to around 22-24 ft3.

While many roof boxes are capable of fitting a wide variety of vehicles you will also need to double-check that the size of roofbox you require is compatible with the roof of your vehicle.

Aside from any potential front or rear overhang which might affect your view or ability to open your rear hatch, you need to consider the load capacity of your roof. Passenger cars generally have a maximum load of 165 lbs and that will include the weight of the cargo box as well as your luggage. While getting the largest box is tempting you will have to be more careful about the weight of objects you fill it with.

Popular Rooftop Cargo Boxes

Thule and Yakima are two of the most popular brands for rooftop boxes. They both have aerodynamic designs and different capacities.

Security is important when using a roof box and both brands have secure locks. It’s also important to consider ease of mounting and both brands offer easy installation.

Warranty, style, price, size, color options, versatility, durability and quality are all factors to consider when shopping for a rooftop cargo box. Installation is also something to consider when choosing the right cargo box.

Comparison of 3 Thule models


Thule is a popular brand for rooftop cargo carriers! Their roof boxes come in different sizes and are perfect for those who want to take their next adventure out on the road.

Plus, they’re designed with cross bars that make it easy to mount your box securely to your vehicle’s roof. The Thule WingBar system ensures you get maximum stability as you drive along and its Pulse Large model provides plenty of space for all your gear – up to 16 cubic feet of storage capacity!

With this mounting system, you can trust that you’ll be able to safely transport any items needed for your journey without having them fly away mid-trip.

All in all, Thule rooftop cargo boxes provide an excellent way to liberate yourself from packing worries when embarking on a new adventure.


Another great option for rooftop cargo boxes is Yakima. They offer a variety of roof rack systems that can carry large and small items on your vehicle.

Plus, their XL Cargo Box has an impressive 19 cubic feet storage capacity so you can fit all the essentials for your adventures without any worries! And with its aerodynamic shape, it’ll reduce drag and noise levels from wind as you drive too.

Yakima also provides worry-free installation because their system works with both Thule and Yakima crossbars. So no matter what type of car or truck you have, you won’t need to worry about compatibility issues when installing your new rooftop cargo carriers – freeing up more time for planning out your next journey!

Aerodynamic Design

An aerodynamic design is an important factor when looking for a roof box. When you’re out on the road, having less drag and noise from wind can make your journey much more enjoyable – so it’s worth taking into consideration! It will also stop your gas mileage from being affected quite so much.

The Rocketbox Pro Cargo Box by Yakima has an aerodynamically tapered design that reduces drag while also allowing space for larger items to be stored in its 11 cubic feet of storage capacity.

For more capacity you could try the Skybox models.

How To Choose A Roof Box

Choosing the right roof box can be tricky. The size of your car and the amount of stuff you plan to carry will determine what kind of roof-mounted cargo box is best for you.

When deciding, think about how much space you need and if using a rooftop box or bike rack is more convenient. If you’re an avid skier or snowboarder, it’s important that your gear fits in the rooftop cargo box along with other items like camping equipment.

To make sure everything fits, measure both length and height before making a purchase. Having enough room also means that any extra passengers don’t have to suffer from cramped legroom! Ultimately, investing in a quality product that meets all your needs as well as safety regulations should always be top priority when choosing a roof storage box.

What Are The Biggest Roof Boxes

The largest capacity roof box I can find is the Farad Marlin 680L. You can find out more about large capacity roof boxes here.

How To Use A Roof Box

Have you ever heard the theory that you can never have too much cargo space when it comes to your car? It’s true! Whether you drive a Ford Focus or another make and model, having enough room for all of your stuff is essential.

A roof box gives you extra storage while keeping everything tidy and organized.

Installing a storage solution on your roof may sound overwhelming at first, but once you have all of the materials ready it won’t take long before it’s securely mounted on top of your car – providing extra storage for whatever items you need without taking up any valuable interior space in your trunk or passenger area!

How To Store A Roof Top Cargo Box

Now that you know how to use a roof box, it is time to learn about storing one. Storing your rooftop cargo box can be just as important as using it!

To store the box properly, you will need some storage space and enough room for the box when fully assembled.

First, remove the key from the lock of your cargo box after each use. Make sure you secure the keys away in a safe place – not with the cargo box itself! Also, double-check that all latches are securely closed before putting your cargo box into storage. This will help ensure that no one can open or access your belongings while they’re stored away.

When done correctly, this can also help protect against any damage caused by weather conditions like rain or snowfall. Finally, make sure to lock up your keys so that nobody else has access to them while they’re stored away too.

With these tips in mind, now you have everything you need to safely store your rooftop cargo box!

Roof Cargo Box Size Guide: Conclusion

The roof box is an amazing way to transport your gear. It’s perfect for those long family road trips or when you just need extra space.

With a variety of sizes, styles and brands available, it’s easy to find the right one for your needs. There are some requirements that must be taken into consideration before purchasing, but once you do, there’s no limit to how much stuff you can carry!

Don’t forget about proper use and storage – if done correctly, your rooftop cargo box will last a lifetime. So don’t wait any longer – get out there and explore with all of your belongings in tow!

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