I am planning to install a new maibox and I would like to make the post out of wood and add some nice design elements. The vinyl and metal mailbox posts that you can find at the BORG are rather drab (yet expensive). The one advantage that they have over wooden mailbox posts are their resistance to rot. Even if I used pressure treated wood, treated cedar, or fir I'm sure I would be replacing it in a few years. The post will need to be anchored in concrete because of all the heaving and freeze/thaw cycles that we get here in Wisconsin. Even the best wooden post will eventually tend to rot near the ground in this climate when set in concrete because of how the moisture gets trapped at the base. What I would like to do is use a metal anchorage constructed from angle iron or similar material and set that in the concrete. The wooden post could then be secured to the angle iron. If some day I need to replace the post because of rot (or if SWMBOs taste suddenly changes) I won't have to be chipping out and re-pouring my concrete base. I'll just need to unbolt my wooden post and reattach a new one.
Any thoughts? Does something like this already exist in stores or should I polish my metalworking skills? Is there a downside to this approach that I am missing?