Found this wall tent visualizer tool online.  http://www.outfitterwarehouse.com/tent-visualizer/
Really useful when picking out a tent size.  Don't know anything about the company otherwise. Just like the tool.

thanks, Im searching and is just what I needed to help

I am looking at the Wall Tent Shop and Davis for wall tents.  Thinking 14x16

ttt for a fellow tradganger

Davis makes a great tent.  Don't forget to add the Colorado door......on both ends.  I also had them make the fly longer ( nine feet ) so I have a nice porch.  I took their advice , I was thinking about a 14x16 but wasn't sure. They told be if you are considering two different sizes buy the bigger one. I'm not sorry that I bought the 15x18......... Not for a moment !