The ht of the floor of the weekend warrior down to grade is up to you, depending on whether or not you have a slab, crawlspace or even a pier foundation. So this could vary from 6" to 4'. I will list the hts from the top of the subfloor.
The ht of the top of the walls from the top of subfloor is 15'-7". The overall ht to the top of the roof ridge above the subfloor is 17'-10".
If you have any other questions, please let us know.