Anjib is right about stick framing. Here’s how a 60 year old camper was framed, and except for water intrusion, would have lasted another 60 – notice the butt joints and lack of continuity?
However, my motto seems to be “why just do it, when you can over-do it?”
![Image](http://thisoldcamper.files.wordpress.com/2014/04/curb-side-framing.jpg?w=640&h=480)
I put them together with lap joints, glue, screws, biscuits, kregs and any other un-necessary attachment method possible.
![Image](http://thisoldcamper.files.wordpress.com/2014/04/img_0699-640x480.jpg?w=640&h=480)
Anything that you build will probably be strong enough; your biggest enemy will be water (and people on cell phones).