Basement Support Post - Top 50 Best Basement Pole Ideas Downstairs Column Cover Designs - Jan 14, 2003 · the 3 posts were sitting on concrete piers which are 3.5 inches below the concrete floor (the rest of the floor). Basement Support Post - Top 50 Best Basement Pole Ideas Downstairs Column Cover Designs - Jan 14, 2003 · the 3 posts were sitting on co... Visit Site