The indoor floor is slightly lower than the outdoor floor, which is beneficial to feng shui and needs no improvement. Feng shui pays attention to storing wind and gathering gas, that is, external air is easy to flow into the room, while internal wealth is not easy to be exposed. In ancient times, the high threshold was set to play the role of hiding wind and gathering gas.
However, in terms of decoration, we must pay attention to waterproofing, so as not to get wet at home and affect our normal life.