Any load that projects beyond the rear of a vehicle must be within a certain limit.
Different vehicles have different limits - you can calculate your vehicles limit using the following guide:
There are also some minor changes to warning signs, warning lights and width limits for loads that project beyond the rear of a vehicle.
If the vehicle and load is within its allowable limits and the load projects beyond the rear of the vehicle and is more than 1.2 metres (rearward projection), then:
- During the day, you must fix a brightly coloured flag to the rear of the load.
The size of the flag must be at least 30cm square, and the colour must be:
- bright red
- bright yellow, or
- a combination of bright red and yellow.
At night, you must display a red warning light that is visible from at least 200 metres away.
Box Trailer Requirements
If you are using a box trailer, you can have a forward over hang of up to 1.2 metres, but you are not permitted to transport a load that projects beyond the rear of the trailer.
A load must not project more than 150mm beyond the vehicle's width or be more than 2.5 metres in overall width.
The new requirements are about making sure the load can be carried safely and can easily be seen by other road users.