What is the name of the wooden post located at the top or bottom of a stairway?

The wooden post located at the top or bottom of a stairway is known as a newel post. This component serves several important functions. It provides structural support for the handrail that spans the stairs and helps to anchor the stair railing, which is essential for safety. Additionally, newel posts can be designed to be decorative features within the staircase, enhancing the overall aesthetic of the space.

Newel posts are typically larger and more robust than other types of stair components, distinctly marking the transition areas of a staircase. The other options, while related to stair construction, do not refer to this specific post. Railing refers to the horizontal component that runs along the stairs, spindles are the vertical balusters that support the railing, and a banister is a term often used interchangeably with railing but does not specifically designate the post at the ends of the staircase.