I built an an outhouse for my camping property in the PNW. The plans were great and easy to follow.
I did take the liberty of extending the the front wall to 8' still using the 15 degree roof line. I also wanted the option to shower during extending camping trips so I extended the floor and added one more back and side wall to create a shower house. With this design, I basically duplicated the side and back wall. Since I am in the middle of the woods, the Dutch doors were a last minute embellishment that I'm glad that I implemented in order to take advantage of the view!
For the shower, I used composite decking with 1/2" gaps for drainage and lined the inside with 6' lengths of corrugated metal roofing.
One additional note: I did build this on my back patio over a couple of weekends since my property is a fairly long drive from my home and about 2 hours round trip from the nearest hardware store. It broke down easily in about 30 minutes with 2 people and fit perfectly in the back of a full size pick up truck for the trip.
In summary, great plans and I love this site. Much appreciated and happy building!