Frank1969-One thought is to make sure it is big enough and anticipate more guests coming. My father, brother and I built one a year ago. At the old camp it was only ever the 3 of us and the other owner, so we figured we just needed enough for us three. Little did we know the rest of the family loved what we did and now everyone wants to come up, we tend to be a little cramped. We went 20x36, I wish we would have went 32x40.
Also, we did a post and beam foundation to keep air moving and not allow the critters to make a home.