A: I wish I had a quick answer. Well, I do. You need a railing guy! :) Or, get a large dowel and sink it into the bottom of the post, and then bore a matching hole in the floor. You will also need some long wood screws, which, after you bore holes near the bottom of the post, on the outside edges, drive the screws into the post on an angle toward and into the sub floor and hopefully floor joist if one is located beneath the post. Don't forget to use glue. I found some great polyurethane adhesive in a squeeze bottle at Home Depot made by Pro Bond.
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