I then took a new look at a loose rail post, or baluster, midway up the staircase.
From the post-gazette.com
For systems where the baluster does not start at the treads, they go to a baserail.
From the en.wikipedia.org
This allows for identical balusters, avoiding the second baluster problem.
From the en.wikipedia.org
The second baluster is closer to the riser and is taller than the first.
From the en.wikipedia.org
Two wooden matchsticks later, the baluster was conquered.
From the post-gazette.com
A large baluster or post used to anchor the handrail.
From the en.wikipedia.org
To light a deck, several decking material manufacturers offer built-in post and baluster lights with hidden wiring.
From the chron.com
Zeidner says he tries to maintain the existing gap by choosing the proper thickness of iron replacement baluster.
From the charlotteobserver.com
The extra height in the second baluster is typically in the middle between decorative elements on the baluster.
From the en.wikipedia.org
More examples
One of a number of closely spaced supports for a railing
(balusters) bannister: a railing at the side of a staircase or balcony to prevent people from falling
A baluster (also known as a "Stair Stick", and according to OED derived through the balustre, from balaustro, from balaustra, "pomegranate flower" [from a resemblance to the swelling form of the half-open flower (illustration, below left)], from Latin balaustium, from Greek balaustion- ...
A short column used in a group to support a rail, as commonly found on the side of a stairway; a banister
(Balusters) Upright supports of a balustrade rail.
Balusters are small posts that support the upper rail of the balustrade.
(BALUSTERS) Vertical spindles supporting the handrail of a staircase.
(Balusters) Vertical members in a railing used between a top rail and bottom rail or the stair treads. Sometimes referred to as "pickets" or "spindles."
(Balusters) Vertical posts that support the handrail system. Often called spindles. The two most popular types are made from wrought iron and wood.