When furnishing and decorating a home, people often place identical items in pairs. However, according to Vastu Shastra, not all things are favorable when kept in pairs. Having two such items or placing them incorrectly can negatively affect the atmosphere of the home, as well as influence the family's well-being, positive energy, and financial condition.
There are several items that, according to Vastu, should be avoided in quantities of two.
According to Vastu beliefs, it is not recommended to place two images of Shiva in a place of worship. Similarly, jointly placing two statues of Ganesha or two Shaligrams is also not considered auspicious. Special importance is given to the quantity and method of installing deity images in the shrine.
If two clocks are installed in one room, it is best to remove them. Especially undesirable from a Vastu perspective is when these clocks show different times. It is believed that this can lead to increased tension among family members and obstacles in work.
The main entrance to the house is of great importance in Vastu. According to beliefs, having two main entrances can disrupt the balance of energy. Some Vastu principles also link this to financial difficulties and reduced wealth accumulation. Nevertheless, to determine the location of the main entrances, one should consult a specialist based on the structure of the house.
In Vastu, a broom is associated with abundance and prosperity. Therefore, it is advised to avoid placing two brooms together in one place. It is more appropriate to store a broom in a clean and hidden place.
Two mirrors should not be placed directly opposite each other in the house. According to Vastu, mirrors placed opposite each other can affect the flow of energy and increase anxiety in the home environment. When installing mirrors, the direction and space in front of them must be taken into account.

