Regarding Feng Shui customs? Can a grandson erect a tombstone for his grandparents? Can he do it without the consent of his parents? Can the grandson and son-in-law be named on the tombstone as well?

Since ancient times, there has been an order of elders and younger ones, and there are differences between men and women. This principle should also be followed when erecting monuments and worshiping ancestors. Your grandson can erect a monument for your grandparents, but your father and uncles must agree and bear the cost. Even if they only give you one yuan each, you must accept the money. The posthumous names are engraved on the stele in order of eldest son **, second son **, eldest grandson **, and great-grandson **. Women such as granddaughters are not allowed to be on the monument. If the grandson-in-law comes in backwards, he can be counted as a male in the family. When entering the monument, he should be ranked behind the grandson and in front of the great-grandson. If he didn't knock in the door upside down, don't go up to the monument. If he has filial piety, he can pay for it.