If you’ve ever packed the car for a holiday, you’ll know the struggle. Suitcases stacked to the roof, kids squeezed in between bags, and that sinking feeling when you realise there’s simply no more room. That’s where a roof box comes in a simple, effective way to create extra space and make your journey far more comfortable.
But while roof boxes are incredibly useful, they’re not a “throw everything in and hope for the best” solution. Knowing what you can and can’t put in a roof box is essential not just for convenience, but for safety, legality, and protecting your belongings.
At Midlands Roof Box Hire, we’ve helped countless customers travel smarter, and one of the most common questions we get is: what should actually go in a roof box? So, here’s your complete guide to packing it properly, understanding the limits, and avoiding costly mistakes.
Why It Matters What You Pack
At first glance, a roof box might seem like an empty storage container that just happens to sit on top of your car. In reality, it’s a carefully designed piece of equipment with specific weight limits and safety considerations.
Anything you place in a roof box affects your vehicle’s balance, aerodynamics, and handling. Too much weight or the wrong kind of items can make your car less stable, particularly at higher speeds or in windy conditions.
There’s also the question of liability. If your roof box is overloaded or incorrectly packed and it causes damage or an accident, responsibility typically lies with the driver. That’s why understanding the practical limits is so important before you even start packing.
What You Can Put in a Roof Box
Let’s start with the good news roof boxes are brilliant for a wide range of everyday travel items.
The golden rule is simple: lightweight and bulky is best.
Suitcases are one of the most common items people store in a roof box. Instead of cramming them into your boot, you can move them up top and instantly free up interior space. This is especially useful for family holidays, where luggage tends to multiply quickly.
Camping gear is another perfect fit. Sleeping bags, tents, foldable chairs, and airbeds are all relatively light but take up a lot of room. By placing them in the roof box, you keep your car organised and your essentials easily accessible.
Pushchairs and prams can also work well, particularly when they’re folded down. These can be awkward to fit into a car alongside luggage, so the roof box provides a practical alternative.
Sports equipment is another great option. Skis, snowboards, and even lightweight outdoor gear like fishing rods or picnic sets can be stored safely in a roof box, provided they fit properly and are secured.
In short, if it’s something that takes up space but doesn’t weigh much, it’s likely a good candidate for the roof box.
What You Shouldn’t Put in a Roof Box
Now for the important part what to avoid.
Heavy items are the biggest concern. Tools, weights, or anything dense should never go in a roof box. Not only can this exceed the weight limit, but it also raises the centre of gravity of your vehicle, making it less stable on the road.
Fragile items are another risk. While roof boxes are sturdy, they’re still exposed to movement, vibration, and temperature changes. Glassware, delicate electronics, or anything easily damaged should be kept inside the car where it’s more protected.
Loose items can also cause problems. If things aren’t packed tightly, they can shift during the journey. This not only risks damage but can also affect the balance of the box itself. Keeping everything secure is key.
It’s also best to avoid storing valuables. Even though roof boxes are lockable, they’re still more accessible than your car’s interior. Expensive items are better kept out of sight inside the vehicle.
Finally, anything you might need during the journey should stay inside the car. Constantly opening the roof box at service stations or roadside stops isn’t always practical, especially in poor weather.
Understanding Weight Limits
One of the most important aspects of using a roof box is understanding how much weight it can safely carry.
Most roof boxes have a maximum load capacity, typically somewhere between 50kg and 75kg. However, that’s only part of the picture. Your car’s roof also has a weight limit, which includes the weight of the roof bars and the box itself.
This means your actual usable capacity may be lower than you think.
Exceeding these limits isn’t just risky it can also be illegal. An overloaded roof box can affect braking, steering, and fuel efficiency, making your vehicle harder to control.
The best approach is to check both the roof box specifications and your vehicle manual, then pack accordingly. When in doubt, it’s always safer to stay well below the maximum limit.
How to Pack a Roof Box Properly
Packing a roof box isn’t just about what you put in it’s also about how you arrange it.
Weight distribution is crucial. Heavier items (within the allowed limits) should be placed in the centre of the box, with lighter items around them. This helps maintain balance and prevents the box from becoming uneven.
Everything should be packed tightly to minimise movement. If there are gaps, fill them with softer items like clothing or blankets to keep everything secure.
Straps are your best friend here. Many roof boxes come with internal straps to hold items in place, and using them properly can make a big difference.
Before setting off, always double-check that the box is fully closed and locked. It might sound obvious, but it’s a step that should never be rushed.
The Impact on Driving
Once your roof box is packed and ready, it’s important to adjust your driving style accordingly.
With extra weight on the roof, your car will handle differently. You may notice slightly reduced stability, especially when cornering or driving in strong winds. Braking distances can also increase, so it’s worth leaving a bit more space between you and the vehicle in front.
Height is another factor to consider. With a roof box fitted, your car will be taller than usual, which can catch people out when entering car parks or driving under low barriers.
Fuel consumption may also be slightly higher due to increased wind resistance. It’s a small trade-off for the extra space, but something to keep in mind for longer journeys.
Liability and Legal Considerations
When using a roof box, responsibility ultimately lies with the driver.
If the box is overloaded, incorrectly fitted, or poorly packed, and it leads to damage or an accident, you could be held liable. This includes damage to your own vehicle, other vehicles, or even injury.
That’s why it’s so important to follow guidelines and use equipment correctly. Hiring from a reputable provider like Midlands Roof Box Hire ensures you’re getting high-quality equipment that’s properly maintained and suitable for your vehicle.
We also provide guidance on fitting and usage, so you can set off with confidence.
Weather and Environmental Factors
While roof boxes are designed to be weather-resistant, they’re still exposed to the elements.
Rain, wind, and temperature changes can all affect what’s inside. Most roof boxes will keep your belongings dry, but it’s still wise to avoid packing items that are highly sensitive to moisture or heat.
Wind can have a noticeable impact on driving, particularly on motorways or open roads. A roof box increases the surface area of your vehicle, making it more susceptible to crosswinds.
Being aware of these factors and adjusting your driving accordingly can make your journey much smoother.
Making the Most of Your Roof Box
A roof box is all about convenience. When used properly, it can transform your travel experience, giving you more space, less stress, and a far more comfortable journey.
The key is to use it as intended storing the right items, respecting weight limits, and packing it carefully.
By doing so, you not only protect your belongings but also ensure your safety and the safety of others on the road.
Final Thoughts 🚗
roof boxes are one of the best investments you can make for travel, whether it’s a family holiday, a weekend getaway, or a longer road trip. But like any piece of equipment, they need to be used correctly.
Stick to lightweight, bulky items, avoid heavy or fragile belongings, and always keep an eye on weight limits and packing techniques. It’s these small details that make a big difference.
At Midlands Roof Box Hire, we’re here to help you get it right from the start. From choosing the right box to understanding how to use it safely, we make the process simple and stress-free.
So next time you’re packing for a trip, take a moment to think about what goes where. With the right approach, your roof box can make all the difference—and help you travel smarter every time. 🚗✨
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