Thread: Queensland Box Trailer and "Projecting Load" - Overhang

P will be the distance from your trailer hitch to the centre of your single axle, or the mid point between tandem axles if that is what you have.(Rear Axis) That is also called the forward distance. And as per this NZ, dimension pictured below, that is 8.5m. (in NZ).

The maximum rear over hang is measured from the rear axis(middle of that single axle or midpoint between tandems) and in NZ is maximum 4 metres from that rear axis.

Re the front overhang, this is what the NZ regs say ..... front overhang means the distance from the centre of the tow coupling to the foremost point of the vehicle (trailer, including its load). The maximum for light simple trailers is 2.04 metre radius arc ahead of the tow coupling.

Yes, before anyone jumps on me, he is not in NZ...but this might give you some idea of how to interpret your local regs.

And to answer your question re the front over hang, as long as it is not protuding past the coupling, it is not an overhang.

Originally Posted by Gordie

P will be the distance from your trailer hitch to the centre of your single axle, or the mid point between tandem axles if that is what you have.(Rear Axis) That is also called the forward distance. And as per this NZ, dimension pictured below, that is 8.5m. (in NZ).

The maximum rear over hang is measured from the rear axis(middle of that single axle or midpoint between tandems) and in NZ is maximum 4 metres from that rear axis.

Re the front overhang, this is what the NZ regs say ..... front overhang means the distance from the centre of the tow coupling to the foremost point of the vehicle (trailer, including its load). The maximum for light simple trailers is 2.04 metre radius arc ahead of the tow coupling.

Yes, before anyone jumps on me, he is not in NZ...but this might give you some idea of how to interpret your local regs.

Hello Gordie,

I hope everything is going well for you in New Zealand? Your government's artwork is a step above the Queensland department's. They also include a dimension for the front!

Yes, I failed to mention that it is a dual axle trailer.

Thank you for your insight. Stay safe and well.

Kind regards
Lionel

Just looking at the QLD regs, R(rear overhang) can be no more than 3.7m or the length of P, whichever is the lesser. All measured from the axis(axle). Your interpretetion of the 1.2m is correct re not having to flag it at under that. But you can go out to the above 3.7. or P whichever is the lesser, for the overhang, with a flag!

Remember P is from the axis(axle) to the coupler.

Originally Posted by Lionelgee

Hello Gordie,

I hope everything is going well for you in New Zealand? Your government's artwork is a step above the Queensland department's. They also include a dimension for the front!

Yes, I failed to mention that it is a dual axle trailer.

Thank you for your insight. Stay safe and well.

Kind regards
Lionel

Thanks mate, yes all well here cheers. Yep our diagram is a little clearer, but not the dimensions you want to work off! But if it helps you get your head around it, all good. Yes, your axis is the midpoint between those tandem axles.

I have legitimately carried 5.4m lengths of timber on my tandem trailer, with rear overhang and flagged...but I load them right up close to the coupler.