Door undercuts typically won t allow enough air to get out of the bedroom unless you leave a gap bigger than most people want under their doors.
Gap under bedroom door.
The conventional wisdom on door undercuts.
Gap under interior doors let me get more specific if the conditions will likely end up with a door mat like a front entry door 3 4 is more appropriate.
Cheaper pre hung doors give about 1 1 25 clearance and this is because the rise of thinner floor systems for the mass consumer market.
There is an approximately 1 5 gap at the bottom of the doors.
How to fix a gap under a door.
But for finished conditions bedroom closets area with w to w carpeting ect 1 2 max.
I think it is too big and think a 1 4 1 2 gap would accommodate any unevenness in our floors and allow us to use area rugs.
Seal the gap under the door.
It s often not wisdom at all and you may get different versions of it depending on which convention you believe.
In the winter they let cooler air in and in the cooling season when your air conditioner is.
Higher quality pre hung doors are usually manufactured with 1 5 clearance under the door as described above assuming the flooring will be premium as well in the 3 4 range.