baluster, banister
1. One of a number of short vertical members, often circular in section, used to support a stair handrail or a coping. […]
Pic
bolster
General
bracket capital
1. A capital extended by brackets, lessening the clear span between posts, often seen in Near Eastern, Muslim, Indian, and
General
blocking chisel
A broad-edged chisel made in a number of sizes, shapes, and weights; a bolster, 4.