Perma-Columns are 10,000-psi precast reinforced concrete posts with ribbed plastic-and-fiberglass pads at one end and galvanized post bases at the other. You install them with 3 to 4 inches of concrete exposed above grade to keep wood posts away from ground moisture. Prices are $46 for a 4x4 40-inch column, $71 for a 6x6 40-inch column, and $80 for a 6x6 60-inch column.

Perma Column, 888/699-8875,

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