A larger north-south length is always better because this length has great cosmic power which is able to with stand any Vastu fault.
The center of the house is the Brahmasthan and should be kept free of any load. Use white marble flooring in this area. Crystal, water and silver add positivity to this zone.
It is necessary to shift a plant or a tree if it is in the wrong zone or is creating an obstruction in the entrance. Cut long branches of trees that cast shadows on the building.
Since Vastu is a two-stream theory, faults in the North may create negativity in the South and faults in the North-West may create negativity in the South-East. Hence improving the qualities of one zone indirectly brings positivity to its corresponding zone.
A basement in the South-East, South, South-West and West gives severe negative results.
Terrace and extension in the south zone leads to premature death of father.
Terrace and balcony in South-East or a cut in South-East or a bore well or well in the South-East all lead to loss of progeny and discontinuity of family line.
An extended North-West leads to theft or excessive expenditure.
Avoid sleeping on wrought iron beds or using wrought iron furniture. Wood is the best material to make beds and other furniture because it is a bad conductor of heat and electricity. Wrought iron is a good conductor of electricity and disturbs the energy flow in the room.
Mirrors and glass are important tools of Vastu rectification. They represent the theories of reflection and refraction. Glass is used to facilitate entrance of external light. Mirrors are used to extend particular zones. Mirrors should be placed only on Northern and Eastern walls and never on Southern walls.