I put the flooring in first then installed a pre hung door.
Recommended space between bottom of interior door and floor.
If you are hanging a door on a finished floor you cut 3 4 off the bottom of the jamb then install.
Usually setting the doorjambs on scraps of 3 8 to 1 2 in thick trim will put the door at the correct height.
Each room except for bathrooms and kitchens should be equipped with its own cold air return duct for proper heating and cooling distribution.
Plan the installation so there will be about 1 2 to 3 4 in.
Find out the thickness of the finish floor and then calculate where the bottom of the door will be.
If you are hanging a pre hung door on a bare subfloor you put the door right on the floor and install it.
It has a protruding edge centered on the bottom that fills the gap between two different floors.
Of space under the door.
I have never seen a door set with that big of a gap unless it was to get past floors that were not level.
Unlike interior doors gaps between a front door and a frame must go with the standards not so much due to the possible expansion of a leaf but because of the danger of penetration of cold air and extraneous.
To fix the issue the doors need to be removed bottom of the jambs cut and reset the door.
Either way it gives you about 3 4 clearance over the finished floor.
Between a leaf of interior doors and the floor it is required to leave a gap of at least 2 2 5 cm to provide natural ventilation.
He says this is too much and wants me to remove the door cut the bottom of the jam off and reinstall.
When the owner stood back he noticed a gap at the bottom of 1 1 4 in.
The standard i use is 1 2 over finish floors 3 4 is acceptable.
Check to see if your door will close over it by placing a small piece of it on the floor under the.
If a room is not equipped with a cold air return it should then have a transfer air grill installed between the room and adjacent hallway which may already have a cold air return.
That is a lot of room for unlevel you have there.