Transfer this measurement to the threshold put on a pair of safety glasses and cut it to this length with a hacksaw or jigsaw.
Space between door and floor.
How to create gaps when installing interior doors.
It should be measured from the floor surface to the bottom of the door.
This number is regardless of flooring.
Door clearance although this is a broad term it usually refers to the space between the top of the door and header rabbet or bottom of the door and finished floor.
Gaps between door casing and laminate flooring are common and manufacturers have designed a wide variety of special pieces for this purpose.
A gap of 4 cm is allowed for convenient and safe door opening.
That is a lot of room for unlevel you have there.
This allows for proper air exchange between rooms.
Measure the distance between the door frames at the floor.
The door gap to the floor should be 5 8 to 3 4 inch.
To fix the issue the doors need to be removed bottom of the jambs cut and reset the door.
You simply describe the gap take a picture of it or.
The standard i use is 1 2 over finish floors 3 4 is acceptable.
If each room has individual air returns the numbers can be smaller for personal taste.