





Vault Toilet Build
Posted here awhile back asking for sheathing options for a simple vault toilet design.
The project took many turns and longer than expected, but here’s the result.
T1-11 on the outside
interior is OSB with 4’ tall sections of FRP lining the base of the toilet area and an exterior rated paining from 4’ to the ceilings
Oak veneer doors with marine grade varnish — these still get a 24”x24” metal louvre cut into them for ventilation
Thinking about eventually doing some slat wall panels above the FRP to class it up a bit and hide the strip lighting that will eventually be installed.
There are 800 gallon tanks under each toilet with a 6” base poured on top and thickened edges that county codes required.
ADA accessories include grab bars, commercial door levers, 2x commercial toilet paper holder, wall mount hand sanitizer
Now just 2 more to finish. These are for a rustic campground for those curious.
We made a lot of sacrifices to keep costs down and probably made a few decisions that ended up costing more than it should have.
Each unit also has a large storage room accessed from the back of the unit for cleaning supplies and a battery to connect to rooftop solar panels