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Interior door clearance...

1205 Views 4 Replies 5 Participants Last post by  joecaption
What gap is typical for adequate air flow? I need to trim down a few interior doors. The first two are 36" wide for 100sf or so bedrooms with no individual returns. The master has double doors measuring 60" total with a return in the room. There is one large return in the hall near the two bedrooms. I'm thinking 3/8" for the small bedrooms and 1/8" for the master. Please let me know if this works. I want the heat pump to work as efficiently as possible.
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the average interior door depending on what flooring and who set it has around an inch under it. for years they have been requiring cold air returns in bedrooms.
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