".. 2 PT 4x4x8's from Lowes, laid them on the ground, stacked the
firewood on them, and covered the wood with a tarp. I just used the
last of the wood (all good BTW) and went to move the 4x4's. They were
eaten up and rotted from the ground side up. Termite tunnels were
readily apparent.
Two years on the ground, not in it, and they were completely useless!

obviously NOT the grade for "Ground Contact"