how many doors our house ideally should have?

Answer 1

The main door should be larger than the inner doors and all doors should open towards the walls. All windows should be at least 3 feet 6 above ground level, and should be at the same level from the top. Window openings should be on the northern and eastern sides of the buildings.

Answer 2

As per vaasthu the doors should be in Even nos like 2,4,6.