It would be nice if these were dynamically sized up to two walls high. One wall high is pretty low and you can’t attach them to the bottom of a ceiling to “link up” with one coming from the floor.
Need columns in the DLC styles as well.
And let us hang lanterns or torches from them 
I agree, because I never build structures one wall high, it’s always two walls high. I was actually surprised none of the DLC sets had beams too, a bit of a missed opportunity.
Definitely needs to be like some of the columns in Sims 3. So it’ll lengthen between one story and two story versions.