A post that supports a roof is called a column.
They are supported by pillars are column's.
the post that supports a house is called a column.
the post that supports a house is called a column.
It's called a pallate.
In this sentence, the word "column" refers to a tall, vertical pillar that provides support to the roof of the town hall. It helps to hold up the structure and distribute the weight of the roof evenly.
HYPOSTYLE
Purlins are used on double roofs. They effectively reduce the span of the rafters and limit their size to ecenomical sections.
I think the answer is the column.
If you mean the result of them meeting, tip to tip, as they grow, then thickening from that as a single shaft of calcite from roof to floor, the result is a "Column".
I think you are asking about Stalactites and Stalagmites respectively: both precipitations of calcite. If they meet the result is called a Column.
it is called a roof