With regards to tiny house dimensions, there are no set dimensions as to the maximum size tiny homes can be as they don’t have an official classification. Anecdotally experts in the area suggest they shouldn’t be any bigger than two stacked 20ft containers (a modifiable option for some). At that point, they cease being tiny homes with a floor plan and square footage closer to that of a regular home.
A Tiny House on Wheels (THOW), however, must be constructed on a trailer designed to road-legal dimensions. This is typically a maximum of 4.3m in height, 2.5m in width, and 9m in length. There are also weight limitations that state that it must not be more than 4.5 tonnes with regards to its aggregate trailer mass. This does somewhat limit the size of a wheeled version though for many it is exactly what they’re after.
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