In Feng shui there are five basic elements and based upon their nature they support each other very well which is call constructive or productive cycle. The placement of items in house should be based upon this cycle to have positive harmony in house or work place.
If things are placed as per Destructive or Non-Productive can cause negative energy flow, which is not beneficial.
Here is the presentation of both cycles.
Destructive or Non-Productive cycle
Constructive OR Productive Cycle