How long can I build a tiny house on wheels (THOW) in Australia?

The legal length limit of a registrable tiny house on wheels (THOW or caravan) in Australia is 12.5 meters long. However, building a 12.5 meter long tiny house on wheels under a weight limit 4500kgs is very difficult, so we suggest doing preliminary weight estimations for your tiny house design before buying the longest possible trailer.

For information on building a tiny house on wheels outside of this length limitation see this article here.