What is the best size of the circular tomb?

3-4m in diameter and 1.5-2.4m in height. The optimum size of a circular tomb is 3-4m in diameter and 1.5-2.4m in height. A circular tomb is a form of commemoration. It will be held on the third day after burial, and all family members will go to the grave for a ceremony to cultivate soil for the grave. It is also necessary to burn paper money and offer sacrifices. The grandchildren of the deceased (boys and girls) turn around the grave three times and turn three times, which is called "opening the door".