How do you install stair handrails for a deck?

Question

I have the top and bottom post installed. They are notched and bolted on the sides. I was wondering how do you determine the angle of the miter cut for the top and bottom boards going from post to post?

Answer 1

There are several ways to do this.  You can measure up to a point on each post and snap a line.  Use a Speed Square to determine the bevel measurement.  Another option is to use a framing square.  Set the blade on the rise, and the body on the run.  Trace the edge of the square to get your angle.  Hope this helps.

Answer 2

just scribe it, put a board up against the posts and draw a line then you have your angle