1. Don't lean the sofa against the door.
If the sofa is in a straight line with the gate, it is called "hedging" in Feng Shui, which has considerable disadvantages. In this case, it is best to move the sofa to avoid hitting the door. If there is nowhere to move, you have to put a screen between them, so that the air flowing into the room from the gate will not go straight to the sofa.
2. Don't put the sofa in the living room in the straight room.
Sofa plays an important role in the living room, just like the main port of the country. An excellent port must have prominent bends on both sides, which are shaped like U-shaped letters of English letters. Protruding bends are like holding the left arm and the right arm, and the central depression is the receiving position of geomantic omen, which can hide wind and gather gas to achieve prosperity in Ding and Cai. Therefore, the decoration of the sofa should be curved, not straight.
The sofa must be placed in Ji's residence.
Sofa is the focus of the family, because it is a place where families sit and lie down every day. If placed in an auspicious position, the whole family, old and young, can be infected by the prosperity of this position and the whole family is healthy. But if you put it in the wrong unlucky direction, the whole family, old and young, will suffer and the family will not be at peace.
I hope my answer can help you.