They are the large vertical posts at the top and bottom of the staircase.

A construction technique in which rock fill is used between vertical wooden posts.

At the base of the fountain a concrete wall extends between the vertical posts.

Nobody put vertical posts that close together, not even in bearing walls.

They are characterized by vertical wooden posts set into the front stone facing.

It took him only a few minutes to secure a vertical post and cross-spar.

These are the large, vertical posts at the top and bottom of the staircse.

Racks are available with either four or two vertical posts.

The result was entirely self-supporting; it did not require any vertical posts.

A term for the vertical posts that hold up the handrail.