King builds composting facilities sized to the number of horses on the farm. This structure has a roof and at least three composting bins; the bins can be made from pressure treated wood, concrete block or poured concrete walls.
Composting facilities should have a concrete floor, which will make it easier to turn the compost with a tractor and bucket loader. We can even build in an aeration system that requires no turning.
Unloading the manure and bedding is easier if the composting bins are below grade, but it will work either way.