Generally speaking, Taishan stone is the most effective tool to deal with the lack of corners in the room. It would be better if Shi Gandang on Mount Tai was written in vermilion red, because there was a custom of eliminating disasters in ancient China to erect a stone engraved with Shi Gandang on Mount Tai. It is said that,
Shi Gandang on Mount Tai is known as "Shi Gandang, full of ghosts, disaster suppression, official blessing, people's health, ethical education, and prosperous rites and music". Therefore, "Mount Tai Shi Gandang" is known as "the treasure of the town house".
I think Taishan stone is usually placed in the town house behind the house.