I have designed this wooden outhouse so you can build one in one weekend with basic tools and materials. If you leave in an area isolated area, this outhouse will be the ideal choice for you.
The frame is made from 2x4s and is really sturdy. At the exterior you can install T1-11 siding or you can go for 1x6 cedar slats. You can frame a small window to the sides of the outhouse or inside the door/
FULL Instructions --> https://goo.gl/jH6uXr