Ekena Millwork 6 in. x 8 ft. River Wood Endurathane Faux Wood Non-Tapered Square Column Wrap with Standard Capital and Base COLURW06X096STUF - The Home Depot
Square Fluted Wood Columns - West Coast Event Productions, Inc.
Brown Wood 01624010PT1, 4" Square Island Column Unfinished Paint Grade | CabinetParts.com