Attach Vertical Wood Element

What happens here

While working at an elevated position, likely on a ladder, align a new vertical wooden element (which could be a decorative trim piece, a cap, or a secondary structural member) against the side of the main vertical post. Ensure it is plumb and flush with the desired edges. Use a cordless impact driver to drive several long wood screws through this new vertical piece and into the main post. Drive screws at regular intervals and at varying angles if necessary to ensure a secure and rigid attachment. This step adds both aesthetic appeal and potentially additional structural support to the post.

Goal: Add a secondary vertical wood piece to the main post