How high do you put a stair banister?
by Pamela Brown
+1
How high do you put a stair banister and how many supports should be installed?
Suggested Project Book
Here's a link for you:
https://www.diynetwork.com/how-to/outdoors/landscaping/how-to-install-a-stairway-handrail
Also you need to follow building codes.
Thanks so much for the information
Check your code, and a good rule of thumb for the spindles is at least two per step. But again I would check the building code in your area.