I once encased an 8' lower section of a cresote telephone pole with
western red cedar. The pole presented a nasty problem for the
unknowing children catching the school bus at this site. I adorned the
octagonal casing, top and bottom, with simple moldings/dressing, as if
it were a porch/veranda column. The casing is in 2 halves, latched
together and easily removable, for whenever any utility workman needs
to climb the pole. It has since weathered nicely and is still very
functional after 10+ years. Hence, whatever suits your scenario.