Post Base with Steel Rod and Washer
This is one of our favorite ways to tie down columns. A threaded steel rod is epoxied into concrete and drilled into the bottom of the post. The rod extends up to a mortise, and is bolted to a plate washer. A plug hides the connection. We like this joint because it is hidden while resolving both lateral and uplift forces.
A galvanized steel plate or pvc spacer is used to separate the concrete and the wood.