I've made them (they're called maquettes) before for a coupla projects.  Not as big as 1/3 sized though.   Even just a foot or so tall would be enough for you to get a handle on how it'll look full sized.
Here's one I did.  


Took notes right on the side of the maquette itself. 

I've didn't do cardboard for the last one though.  Just a 3D model.  Don't have the model for that one online, but I do have one for the same cabinet pictured above after some revisions & modifications.  
