Perma-Columns are five foot precast concrete columns that keep wood out of the ground, ensuring your building’s foundation will
never rot. They are the first product to combine the economy of
post frame construction with the durability of a concrete foundation. Simple installation. No waiting on concrete trucks.
No treated wood in the ground.

U.S. Patent Number 6,964,139
“Precast concrete column for use in post-frame construction”