Should the main door's chaukhat, the dehleez, be slightly higher than floor level?
Yes, it must be higher than the floor; only then can it stop the energy. It should be made of wood in particular.
Related questions
Temple door frames are of stone, and stone chaukhats are now common in homes. Should a home use stone or wood?
It depends on the nature the occupants need. Those who must keep firmness, such as kings and military people, use stone, while wood always represents softness, so those who want a gentle nature use wood. The door and its frame shape the nature of the people: if you need to become tough, make the dehleez of hard stone.
The main door picture marked the lower lip but not the upper lip. Where is it?
A frame cannot exist without its upper wood, since it would not stand. The top wood of the frame is the upper lip and the dehleez is the lower lip.
All doors should be at one level, yet the main door's dehleez is raised. Does that mean the other doors also need a dehleez?
One level means that all the doors stand on the same floor level. The chaukhat and dehleez are always set above the floor, so every door is reckoned from that same floor level.
Flats usually have a single-shutter main door. Is it good to add a mesh (jali) door in front, so you can see who is outside?
Yes, a jali door can be made; it is called the supporting door of the main door and is an old tradition, since double paata frames were made earlier, with a jali door on one side and a two-shutter door. It needs a double paata chaukhat with a suitable dehleez, which builders generally do not provide in flats, so ask the builder; without that dehleez and frame the second door cannot be fitted.
How thick should the dehleez be, and of what material?
The dehleez should be 3 inches thick and made of high-grade, artistic wood. The door too should be artistic: old doors carried symbols such as Om and Swastik, mantras and creeper motifs, which increase the door's power.
If a lift opens directly into the house, does it work as the main door?
A door is an opening with a threshold (dehleez) and a frame (chaukhat). Energy does come in through a lift, but only while the lift is there and open; when it is closed or has gone down, no energy comes from it, so it does not act like a proper main door.