1. According to Vastu, Cash almirah should be placed in Southwest direction so that it opens in North or East.
2. Make sure the cash almirah or locker is comprised of a single door.
3. The placement of the cash almirah or locker should be such that it is facing the North. Since North is the direction of Kuber, so it is believed that Lord Kuber refills the cash.
4. Do not place the cash almirah in the Northeast, more expenses will be there and ultimately loss of cash.