An outhouse or privy is a practical build for cabins, campsites, homesteads and off-grid properties. It is a small, satisfying project – essentially a well-ventilated little shed – and getting the details right makes it clean, odor-controlled and long-lasting. Here is how to build one properly.
Plan placement and type
Location and local rules come first:
- Distance: site it well away from wells, streams and living areas, and check local health regulations.
- Type: a simple pit privy, or a modern composting toilet setup for lower odor and easier maintenance.
- Drainage: choose higher ground so surface water drains away.
Size and comfort
A typical outhouse is about 4×4 feet inside – enough to stand and turn comfortably. Add a bench seat at a comfortable height, a door that latches from inside, and a vent for airflow.
Tools and materials
Tools: circular saw, drill/driver, level, square and a tape measure. Materials: pressure-treated lumber for the base, framing lumber, exterior siding, roofing, a vent pipe, hinges and a latch, and exterior fasteners and finish.
Step-by-step build
1. Base and floor
Build a sturdy, level pressure-treated base and floor sized to your design, positioned over the pit or composting unit.
2. Frame the walls
Frame the four walls, including the door opening, then stand and fasten them plumb and square.
3. Roof and vent
Add a sloped roof with an overhang to shed rain, and install a vent pipe – good ventilation is the key to keeping an outhouse odor-free.
4. Bench, door and finish
Build the seat bench, hang the door with an inside latch, then seal and paint all exterior surfaces to protect against the weather.
Odor and maintenance tips
- A tall vent pipe painted dark draws air up and out, pulling odor away.
- Keep a scoop of sawdust, lime or wood ash on hand to add after each use.
- Screen the vent to keep insects out.
Ready-to-build outhouse plans
Get a complete PDF plan with cut lists, materials lists and 3D diagrams:
Browse our Outhouse Plans collection.