Compost Toilet Plans

We've been building composting toilets for over twenty years, and a lot of people have asked us how. These plans are the answer.

Each set gives you everything you need to build your own composting toilet from scratch — step-by-step instructions, materials lists, measurements and diagrams. They're written for people who want to actually build the thing, not just read about it.

If you get stuck, we're happy to answer questions.