people however don't have the ability to build a deck rail this way or
desire to install all this hardware, or notch the decking boards around
And some people are concerned about their posts remaining
vulnerable to moisture over the years because of direct wood on wood
If you fall into this camp, there are railing solutions for decks available to get you a high quality and beautiful looking railing.
What you may wish to consider is to build deck railing
with posts that are connected to the deck boards by a low profile
surface mount anchor.
Take for example this low profile internal wood railing post anchor shown here.
At less than twenty bucks, it can be used in code
compliant residential rail applications when installed according to the
manufacuturer's engineering guidelines.