Caravan Weight Distribution Made Easy

Caravan Weight Distribution Made Easy

Taking a long road trip with a caravan is a great way to see more of the country without worrying about hotel check-in and check-out times, not to mention the cost. Providing you take precautions and know what you're doing, caravanning in Australia can be great fun and safe. But if you don't understand the basic principles of weight distribution for caravans, you could run into difficulties on the road. In today’s blog post, we are taking an in-depth look at this topic and sharing our tips for balancing weight distribution in a caravan so you can avoid the problems that await the unwary and unprepared.

Understanding Gross Vehicle Weight Rating (GVWR)

Before diving into our top tips for distributing weight evenly in a caravan, we need to ensure you know what your vehicle's GVWR is and what it means. Firstly, if you do not know your caravan's GVWR, it should be printed on a metal plate (compliance plate) attached to the vehicle, together with the VIN, manufacturer, model and various other details. If not, look in the documentation you received when you bought it.

The GVWR is the total weight that your caravan is designed for when travelling on public highways. This weight includes the weight of the caravan itself (the tare mass) and anything you take with you on your journeys. The GVWR for caravans is also often referred to as the ATM (aggregate trailer mass) but whatever you call it, the important point to bear in mind is that it should never be exceeded. If you subtract the tare mass from the GVWR, what you are left with is how much you can carry in your caravan, in kilograms.

Essential Tips for Weight Distribution: Basic Principles

To ensure predictable handling under normal conditions, it is vital to load your caravan evenly. If there is significantly more weight on one side or the other, or you pack too much into the front or back, you are far more likely to encounter handling problems when on the road. Tame your caravan by following these basic principles when packing and loading:

 

  • Load Heavy Items First – Keeping the centre of gravity low helps to improve handling and stability.
  • Determine the Hitch Weight – The hitch weight refers to the downward force (in kilograms) that is being exerted by the tongue of the caravan onto the hitch of the towing vehicle. It should be no more than 15% of the total weight of your caravan.
  • Pack Evenly Across the Caravan – Even weight distribution from side to side will help to ensure even tyre wear and good handling.
  • Secure Large Items – Fasten large items securely so they don’t shift position once you are underway.
  • Check Total Weight – After you have finished loading your caravan, it is a good idea to check the total weight on a local public vehicle scale to make sure you have not exceeded the GVWR.

Of course, following these rules is not always straightforward so let’s look at some practical examples to see how best to ensure even weight distribution on future trips in your caravan.

Practical Application:

If you are not sure how to apply the principles of even weight distribution when loading up for your next trip, try following these tips:

  • Pack batteries, water tanks and other items first, toward the front of your caravan (either over the axle or between the axle and the tongue) and fasten them down.
  •  Pack all the clothing, food and other supplies needed for the trip, distributing items evenly on either side of your caravan.
  • Make sure small items are in boxes or secured in some other way.
  • Check Hitch and total weight, using a hitch weight gauge and public weighbridge.

If you follow the above instructions carefully, the weight in your caravan should be evenly distributed from side to side, with approximately 10-15% of the weight over the tongue/hitch coupling.

Avoiding Common Loading Errors

Some of the most common loading errors made by inexperienced caravanners, which you can avoid by following our tips for balancing weight distribution in a caravan, include the following:

 

  • Exceeding the GVWR/ATM – Overloading your caravan can lead to serious handling issues, including extended braking distances and instability.
  • Placing Too Much Weight on One Side – If you place significantly more weight on one side of your caravan than the other, expect handling issues and uneven tyre wear.
  • Too Little or Too Much Weight at the Front – If there is too little weight over the nose, your outfit may start to sway from one side to the other, commonly referred to as snaking. If there is too much weight at the front, your vehicle and caravan could start to pitch, i.e. move up and down lengthwise.

Load your caravan in accordance with our suggestions, and you can avoid all of these problems.

Checking and Adjusting Tyre Pressure

Before you set off on your journey, it is vital to check tyre pressures for both the towing vehicle and the caravan and adjust the level of inflation if necessary. The easiest way to ensure that your tyres are inflated to the correct pressure is to use an electric tyre pump that is designed to run off your vehicle’s 12-volt supply. With such a pump you can simply enter the manufacturer's recommended pressure for each tyre, and the pump will automatically stop once it has reached this level of inflation. If you don’t possess an electric tyre pump, you can achieve the same result with a mechanical pump and gauge, and a little extra effort.

Using Technology to Enhance Stability

If you still encounter stability and handling issues with your caravan, even after following all our recommendations to the letter, you may wish to consider investing in an anti-sway system. There are both asymmetric and symmetric sway control systems available, both of which stabilise wayward trailers through the strategic application of braking force. Asymmetric systems can apply braking force independently to each side, which makes them more precise and versatile.

Conclusion

Achieving even weight distribution when loading a caravan is of critical importance. Unevenly distributed weight can negatively impact stability and handling and may also result in uneven tyre wear, which will exacerbate any handling issues. To avoid such issues and to ensure you remain within the law, always follow our tips for balancing weight distribution in a caravan and never exceed the GVWR/ATM. You can find many storage solutions and accessories in the RV Parts Express online store that will help you to achieve this aim and stay safe on your travels.