Pyramid Staircase can be use to correct the staircase directions as per vastu. This yantra is specially designed with small pyramids which will not disturb or affect while you go up and down. If the staircase direction is not clockwise than do not worry, fix 3 Staircase 9x9 on first three risers of staircase. In the same way the risers must be in odd numbers, if it is not than you need to correct it in the same way.