https://www.homebuildingandrepairs.co... Here's a link to our website for those interested in learning more about handrails, stair construction and home repairs. I've seen stair guardrails used for handrails plenty of times and would suggest contacting your local building department to see if they allow it. Make sure you get something in writing as approval and don't take someone's word who works there, other wise you could be shocked later when the building inspector does not agree.