You have prompted some memories. I'll start with an outhouse that I didn't use. It was behind a one-room Oregon schoolhouse. My mother's youngest brothers were in the last "class." (Of course, all classes were together in that one room

.) It seemed like ancient history to me because I was a kid but the schoolhouse and the two-holer out back (with a wall dividing it) must have been used about 20 years earlier, in the 1930's.
When I was younger still, we lived with my grandmother for a year. There was a bathroom in each of the 2 houses on the property but it was a fair distance between them and an outhouse in between. What I remember, other than the location, was the sunflowers that grew around it.
Now my own "little house out behind the shack" ... was built by yours truly when I lived in the sticks for 4 years. Like the shack (cabin), the little barn, and the chickenhouse/woodshed - the outhouse was built out of logs. Sturdy but it had a problem.
It was at a discreet distance from the cabin, across the driveway and facing into the woods, including quite a few dense young fir trees. That was a good thing because I probably kinda threw it together. I must have not been carrying my tape measure that day. Without some remodeling, there wasn't enough room for a door. That is, there was not enough room for a door to close when I was in there with my Big Feet ... since I couldn't see any further than about 10 feet because of the trees, I felt comfortable enough and never did put a door on it.
Steve
We are each other's harvest; we are each other's business; we are each other's magnitude and bond. ~ Gwendolyn Brooks