Trailer Load Projections
There are limits to how far loads can project from the back and sides of a trailer as well as how high it can be loaded. Below are a list of guidelines to follow to ensure you are loading a trailer within the road rules. This page is only to be used as a guide. For full rules and regulations concerning trailer load limits, please goto http://www.rms.nsw.gov.au/roads/safety-rules/road-rules/towing.html
These measurements are absolute and may not be able to be achieved depending on the characteristics of the load. A safe load must be maintained at all times.
Total Legal Width: No more than 150mm overhang each side and never more than 2.5m total width (8'2'')
Total Legal Height: Never more than 4.3m high (14')
Total Length: See below
A load must not project more than 150 mm over the sides of the trailer, and must not be more than 2.5 metres in total width.
Use high visibility flags if the load is considered to be inconspicuous.
The legal rear overhang allowed on a trailer depends on the overall length of the trailer being used.
The longer the trailer, the longer the load allowed, however there are also other rules that must be considered..
1,) The overall length of the towing vehicle and trailer must not be more than 19 metres.
2.) The load to the rear half of the trailer must be equal to the load in the front half of the trailer.
How to measure from the centre of the trailer..
Single Axle Trailer: Measured from the centre of the axle to the front of the trailers usable area..
Tandem Axle Trailer: Measure from the centre of the tandem axle group to the front of the trailers usable area..
E.g. To move a 4m length of steel, you must have at least 2m in the front half of the trailer. (measured from the trailer axle)
Measured from the centre of the trailer axle, or axle group, a load must be:
- not more than 3.7 metres; and
- not longer than the length of the load in front of the axle, or axle group.
- Flag required if load is inconspicuous or rear projection is over 1.2 metres.
Flags are required for any load that is inconspicuous or when the rear projection exceeds 1.2 metres from the back of the trailer.
Length of Vehicle and Trailer
The overall length of the towing vehicle and trailer (including load) must not be more than 19 metres. Flag required if load is inconspicuous or rear projection is over 1.2 metres
When loading forward of the tray, it is important to keep all of the load within the draw bar A -frame area. This ensures the load will not collide with the towing vehicle when turning. Failure to do say may result in damage to the towing vehicle or the trailer and load. Front projection is very useful to counter longer loads projecting from the rear of the trailer.