Definitions for "Newel post"
The post at the top and bottom of the handrails and anywhere along the stair run that creates a directional change in the handrails is called the newel post. The newel post is securely anchored into the underlying floor framing or the stair stringer to provide stability to the handrails.
A post that supports the top or the bottom end of a handrail for a flight of stairs.
A post at the bottom, landing, or top of a staircase to which the handrail is secured.
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See Newel.