Frequently Asked Questions

Why should you use Weighpro instead of a public Weighbridge?

– We come to you so you don’t have to find a public weighbridge or the stress associated with using one.

– We weigh each wheel independently giving you wheel weights; axle weights, tow ball weight. You can see if the weight is distributed correctly (left to right…front to back). A public weighbridge can’t do that.

– We supply a detailed report on the spot stating GVM, GTM, TBM, ATM & GCM….and we are there to explain anything you are unsure of.

– You will know exactly how much available payload you have in both the vehicle and caravan/trailer.

Why should I worry about what my car or caravan weighs?

If your car GVM (Gross Vehicle Mass) or caravan ATM (Aggregate Trailer Mass) or the combined weight of both (GCM- Gross Combination Mass) are overweight you could be fined and receive demerit points as it is an offence. Worst still, you could be involved in an accident which could be caused by being overweight and your insurance company may choose not to pay.

I know my car is not overweight, I know my caravan is not overweight does that mean I’m within the law?

Not necessarily, GCM (Gross Combination Mass) is the combined weight of the car and caravan as it drives down the road, quite often to tow the maximum tow weight allowed the car has to reduce weight. In other words, if your car is at its maximum allowed GVM (Gross Vehicle Mass) and the caravan is at its maximum allowed ATM (Aggregate Trailer Mass) you could still be overweight on the GCM (Gross Combination Mass).

Should I pack everything in before we get weighed?

Yes…we recommend you get weighed as if you were about to head off on a trip. Including all passengers and a full tank of fuel. Gas in the bottles and water in the tanks (if that is how you normally travel) Bikes on the racks & kayaks on the roof.

Everything you would normally take with you on your trip

How do we avoid caravan sway or “getting the wobbles”?

This comes down to correctly distributing the weight within the caravan/trailer. In the report you receive from us we detail where the weight is…. if the weight is too far back in the caravan or trailer (too light on the tow hitch) the van can sway which is probably one of the biggest causes of towing accidents.

GVM…GTM…TBM…ATM…GCM… what do they all mean?

Our detailed report will make it simple for you to understand all the different weights.

Is the tare weight on my caravan’s compliance plate always correct?

No…the tare weight is the weight as it came out of the factory. Any accessories fitted by the dealer, or if second hand by the previous owner all add to the weight. This often means that unless you weight the caravan you have no way of knowing how much it actually weighs.

How much gear can I take away with me on that big lap?

Our detailed report will specify available payload down to the kilogram.


Can you just weigh my caravan?

Yes, we can. However, we do recommend that you weigh both the caravan/trailer and tow vehicle but the choice is yours.



You’re not alone…our professional service will send you off with the knowledge and confidence to complete your trip safely and legally.