How much width should be left in the aisle (corridor) for Feng Shui decoration?

The aisle decoration at home is about 1.2 meters wide. Generally, the clear width of a standard residential aisle will not be less than 1 meter. The width of 1.2 meters is due to the occupation caused by decoration, that is, a person walking alone. The width given by the two people, but due to personal factors and lighting factors, the length of the parcel aisle will sometimes be adjusted accordingly.