Back to Our Exceptional Poles Exceptional Preservatives Exceptional Treatment Processes		After the Whitewood is framed, it is loaded onto railcars and moved into the treatment cylinders. NationWide’s poles are treated in HUGE cylinders. Each of the cylinders is 8 feet in diameter. The cylinders range in length from 60 feet to 150 feet. Up to 150 poles can be treated in a single cylinder. Back to Treatment Processes Photos More Steps Timber Barkies Peeling the Whitewood Conditioning Framing Preserving View Larger NationWide’s poles are treated in state-of the-art treatment cylinders. The treating cylinders utilize computer-controlled processing to consistently produce the highest quality poles available on the market today. Click for Large View After NationWide’s poles are treated they are removed from the treating cyclinders. View Larger The treated poles are then spead out, inspected, and tested for “penetration” and “retention” as required under the AWPA Standards.