I have a question installing a iron handrail for some stairs outside of my house. I don't have a wide enough walk way to surface mount the handrail to the level surface of the stairs and walk way so I have opted to put in concrete piers, 6 inches in diameter, down below frost level to embed the posts to the handrail. There are only two steps at this entrance, so it's a very short rail. The handrail's two balusters are one inch square.
My question is, am I overdoing this and is there a simpler/better way? Do I need concrete piers down below frost for something as 'simple' as a free standing handrail ?
Edit: Additional Details;
This is the schematic of the iron handrail its self with it's one inch iron posts.