Those tiny trailer sized houses that have wheels. What purposes is that for.

So you can move them from one location to another. That should be obvious. Mobile homes are, um, MOBILE.

well, the obvious answer is so that you can move them, of course.

the other reason is that if you use a trailer base for the foundation it doesn't have to be built to code. this way you skate around the permit fees, inspections and code enforcements.

Are your talking about mobile toilet?

Those tiny trailer sized houses that have wheels. What purposes is that for.