On the level
Split-level apartments or floors are not advocated by fung shui masters because the lower levels tend to be focal points of yin energy. For instance, if the dining room is on a lower level than the rest of a home, the occupants may tend to feel lethargic and unmotivated after meals. This can be alleviated by turning up overhead lighting in the area, which increases the overall energy.
Those with wooden floors should not have the boards or planks running parallel to the front door because this suggests obstacles to overcome. Rather, the boards should run from the door into the house, an arrangement that will draw in energy. Abstract and irregular floor designs impart a sense of disorder and confusion, so it's preferable to have balanced, regular and harmonious designs. Uneven or rocky floor surfaces should be avoided as they imply life won't run smoothly. Prominent cracks in the floor or those that bisect the room should be addressed because they suggest conflict between the occupants.
While marble floors may be suitable for entertainment areas, they are too cold for the bedroom. Warm surfaces such as wooden parquet and tiles are preferred. If you have marble floors in your bedrooms, placing rugs on them will alleviate the material's yin nature.