In a lot of long-haul family holidays, roof boxes are a great tool at carrying extra equipment. It's amazing how quickly even the biggest of boots can be filled with suitcases, sandwiches and sports equipment. And that's before you remember to load up the bike rack.
And while it may be tempting to place bags on passengers and remove the spare wheel for extra storage, there is an easier option that doesn't involve leaving important things at home. One of which is roof bags, but the more solid and often spacious option is a roof box.
A roof box is a simple but effective way of adding more storage to your car by unlocking as much as 580 litres of storage (which is nearly double the boot space offered by the recently-demised Ford Fiesta). For the really practical and adventurous type, you can even opt for car roof tents for your travels.
The best roof boxes 2024 at a glance:
The best car roof box: Thule Motion XT Medium - buy from Amazon.
Editor's pick: Thule Motion XT Sport - buy from Amazon
Best roof box for capacity: Nordrive Box 530 - buy from Amazon
We've found the best roof boxes currently for sale for a whole host of budgets. Some offer great value for money, but aren't aerodynamic, and others are great at cutting through the air.
The best roof boxes 2024
The best car roof box
![Thule Motion 3](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Thule-Motion-3.jpg?auto=format&w=1440&q=80)
Offering a great load of space at a not-too-extortionate price point, the Motion 3 Medium epitomises the excellent build quality and versatility of Thule roof boxes. They come in a whole range of shapes and sizes, but we reckon this one is all you'll ever need.
It can hold 400 litres and take a huge weight. That's nearly the equivalent of a full boot load on a small hatchback, so to have that capability in a roof box is very useful, and it's hardened shell adds to its sheer durability.
Pros
- Excellent build quality and materials
- Loads of space at 400L and good aerodynamics
- Should be big enough for most vehicles and applications
Cons
- The Alpine variant is even more aerodynamic
Capacity | 400 L |
Dimensions | 175 x 84 x 44cm |
Type | Medium |
Editor's pick
![Thule Motion 3 XXL Low](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Thule-Motion-3-Roof-Box-.jpg?auto=format&w=1440&q=80)
The Vauxhall Calibra of the roof box world, this 300-litre roof box from Thule is designed with aerodynamics as a top priority. While other roof boxes will offer more space, the XT Sport will help fuel efficiency and prevent wind noise. Thule is also renowned for quality and ergonomic designs so the hefty investment should be worth it.
Pros
- Great sturdiness and build quality, as per Thule products
- Surprisingly spacious at 450 litres, which is more than the Motion 3 Medium
- Aerodynamic design, which helps with wind noise and fuel economy
Cons
- Capacity isn't as great as non-aero (large) variants
Capacity | 450 L |
Dimensions | 232 x 92 x 37 cm |
Type | XXL Low |
Best large roof box
![Nordrive Box 530](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Nordrive-Box-530.jpg?auto=format&w=1440&q=80)
For sheer capacity, 530 litres worth of storage is a huge amount to contend with. And at a touch over £400, the Nordrive Box 530 represents pretty good value for money as well as the capability.
It's also fairly aerodynamic. Albeit, it's not quite like a Thule Low or Alpine roof box, it can cut through the air pretty sufficiently while carrying a boot load of things on top of your vehicle.
Pros
- Pretty good value for money, compared to the Thule boxes
- Good quality materials that are UV resistant and scratch-proof
- Can swallow a massive amount of things at 530 litres
Cons
- Possibly overkill for some on size
Capacity | 530 L |
Dimensions | 199 x 39 x 88cm |
Type | Large |
Best compact roof box
![Nordrive Box 330](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Nordrive-Box-330.jpg?auto=format&w=1440&q=80)
For those into more compact roof boxes who don't need the extra storage, Nordrive also offer this 330 litre box. It's made from Acrylonitrile Butadiene Styrene, which according to Nordrive, is scratch-resistant thanks to the integration of acrylic methacrylate and comes with UV protection.
It represents great value for money, too. At just over £260, it sits on the lower end of the roof box spectrum, but if you only need a little bit of extra storage and are mounting it on a smaller car, you really won't need anything more.
Pros
- Great value for money at just over £260
- UV-protected and great build quality
- A very ideal box for smaller vehicles and little extra storage
Cons
- Some will need a larger carrying capacity
Capacity | 330 L |
Dimensions | 133 x 36 x 76cm |
Type | Small |
Best value solid roof box
![best roof boxes](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Untitled-design-2024-01-26T144307.303.jpg?auto=format&w=1440&q=80)
www.halfords.com
While this roof box from Halfords may not offer the most storage, it is the best value solid plastic roof box on the market. The build quality isn't as great as the Thule or Nordrive boxes, but at the money it's offered at for the capacity, it's a tempting choice in the roof box world.
Offering an impressive 420 litres of storage and a side opening mechanism, the aerodynamically designed roof box will, compared to some others, reduce wind noise and keep your fuel bills down.
Pros
- Good value for money at just £265 for 420 L of space
- Slightly more aerodynamic design than some others of the same type
- You can opt to have it fitted as an option
Cons
- Build quality isn't as great as the Thule or Nordrive boxes
Capacity | 420 L |
Dimensions | 174.5 x 82.9 x 39.7cm |
Type | Medium |
Best mid-range roof box
![Thule Motion XT Sport](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Thule-Motion-XT-Sport.jpg?auto=format&w=1440&q=80)
Smaller cars need roof boxes too and this Thule Force XT Sport is the best way to maximise a small space. It may only be 162 x 71 x 40cm but it manages to offer 300 litres of storage and an aerodynamic design to keep wind noise and fuel bills down.
Again coming with Thule's impeccable build quality, it can hold a great deal of items, too. Other sizes are available in the Force XT model, from small, medium, large, extra-large, and Alpine spec. It represents okay value for money as well at a touch over £400. This isn't bad, considering the stature of Thule build quality you get along with just about adequate capacity.
Pros
- Good enough capacity at 300 L of space
- Great build quality, as per Thule products
- The Sport is more aerodynamic than most of the other Force XT range
Cons
- Some will find 300 L too small
Capacity | 300 L |
Dimensions | 190 x 63 x 42.5cm |
Type | Sport |
Best roof box for load capacity
![best roof boxes](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Untitled-design-2024-01-26T151922.951.jpg?auto=format&w=1440&q=80)
www.halfords.com
The big selling point with this roof box is the sheer amount it can carry, 580 litres. It's obviously designed for cars with larger roofs but is easy to use thanks to the dual side opening - which makes loading and unloading things in awkward areas much easier and never requires you to park your car accordingly.
It's also aerodynamically designed to keep wind noise down, but it isn't as aerodynamic as Alpine or Sport spec roof boxes offered by other manufacturers. However, the sheer size of it is the USP that many will be looking for in a roof box for their holidays.
Pros
- Three-year guarantee along with your purchase
- Good volume at 580 litres of storage, which is big enough for a large family
- Dual-side opening makes it easier to use
Cons
- Isn't as aerodynamic as others
- You will need a large car in order to use it properly
Capacity | 580 L |
Dimensions | 205.7 x 80.2 x 50cm |
Type | XL |
Best value alternative to a roof box
![best roof boxes](https://images.bauerhosting.com/affiliates/sites/5/2021/04/Untitled-design-2024-01-26T143841.598.jpg?auto=format&w=1440&q=80)
Everyone usually assumes that a roof box has to be a solid plastic product, but fabric options are just as voluminous and cost a lot less. This excellent roof bag can hold 330 litres and the fabric is fully water-resistant. It also only weighs 3.6kg and can be rolled up when not in use (you'll need to remove the fibreglass poles).
Pros
- Great value for money at under £100 compared to any roof box
- Easier to store when not in use, thanks to fabric materials
- It can still hold up to 330 litres of things
Cons
- Creates quite a bit of wind noise
Capacity | 330 L |
Dimensions | 58 x 9 x 15cm |
Type | Roof bag |
How to find the correct roof racks for your vehicle
![Amazon logo](https://images.bauerhosting.com/affiliates/sites/5/2024/01/Amazon-Logo-1.jpg?auto=format&w=1440&q=80)
For a roof box to be fitted on your car, you'll need a set of roof racks. If your car didn't have them fitted from the factory, there are loads of aftermarket options available - and you can use Amazon Garage to filter your vehicle for the best search results.
Pros
- Easy to filter your vehicle(s) to find the right products
- Lots of cars to choose from, varying from usual to interesting
- You can change cars in the search results
Cons
- You need Prime for free delivery
FAQs and things to remember with roof boxes
Do roof boxes affect fuel economy?
Fuel economy can be affected by having a bulky roof box affecting the aerodynamics of your car. And with a good bike rack attached, those aerodynamics can be affected further. At the end of the day, you can't beat the laws of physics and because your car will be experiencing more drag, you'll use more fuel.
How much MPG do I lose by carrying a roof box?
Depending on the weight and size, you could lose anywhere between 5 and 10% of your usual MPG figures. Thule can dial that back because the Alpine versions of their roof boxes are designed with aerodynamics in mind. The case being a skiing holiday for example, which involves a lot of French motorway miles.
Do roof boxes generate wind noise?
Of course, the other drawback is wind noise. Roof boxes can generate a lot of it at speed and again, aerodynamics come into play. There will be less wind noise if the roof box you use is sleeker. Perhaps the most important point is that if your car doesn't have a set of roof racks, you won't be able to carry one at all. There are plenty of cars which have them from factory, but aftermarket roof racks are plentiful on the market.
Aaron Hussain is a commercial content writer at Bauer Media writing for Parkers and CAR. He is obsessed with classic cars and anything with a fascinating story to tell.
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