Also known asdoor installationdehleezthresholdchaukhat
Vastu poojan is done not only at the start of construction but at several stages and family events; at griha arambh and griha pravesh it is essential.
The whole house, with an offering at every devta pad
No. Do it at bhoomi poojan or shilanyas, when the first slab is laid, when the main door frame is installed and on griha pravesh; the start of construction and griha pravesh are essential. Also do it after a renovation in which walls are broken, for a marriage, the start of a job or business and the birth of a child, and once a year on a swayam siddh muhurta such as Akha Teej or Gudi Padwa for a year of happiness and peace.
Yes, and more than ten grains can be used. If the pit is dug about 10 to 11 inches deep, add yellow mustard. In the dehleez, white mustard must always be put, in good quantity.
When the main door is installed in a muhurta, its four-piece frame (chaukhat) is set up and the base piece of wood is the dehleez (threshold). Door power means installing that dehleez in a muhurta combined with the right swar, with the prescribed samagri, such as silver and pancha ratna, placed in the ground beneath it. Done this way, even a door in a wrong place has about 50 percent of its defect removed. The full door treatment is part of the complete course.
Take a shubh muhurta for dehleez installation (the teacher posts dehleez muhurtas every month) and have a dehleez made. It should still be of wood; make it of stone if you want to become firm and of wood for a softer nature, choosing the type of wood by the qualities you want.