Who built a house with green stone pillars in ancient times?

Big bureaucrats and super-rich families can use green pillars when building houses-but this is rare.

There are no statutory restrictions on the materials used for building columns, unlike the grade restrictions stipulated by the court in terms of color and pattern.

Bluestone, commonly known as limestone. Bluestone is a kind of stone. It exists widely in nature, and it is a very common rock, not a gem. Because of its convenient materials, huge natural stock, wear resistance and weather resistance, it is often used as the external wall decoration of ancient and modern buildings or outdoor buildings.

In ancient times, there were many beams and columns in building, and so were the "four beams and eight columns". Columns are divided into open columns and hidden columns. Hidden columns are built in the wall, and open columns are used in the eaves gallery. However, it is rare to use stones for the whole column in building construction. Even palaces are mostly used as cushion columns. In ancient buildings, bluestone is often used in memorial archways, Yin houses, columns, stone walls, covered bridges, fences and so on. However, it is seldom used on the columns of houses, because the columns of houses are generally cylindrical, and the columns should be round and straight. In ancient times, stone processing was mostly hand-carved. Technically, it was very difficult to process irregular rough stones into round stones. Even if it is carved, it is far less economical and applicable than wood in terms of seismic safety factor and so on. What's more, the ancients paid attention to "stubborn stones don't enter the house."