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What are the opening dimensions for a standard interior door?

I currently have an aisle in my house that I would like to leave open for a while, but with the possibility of installing an interior door there later.

Who knows this: if I plaster the frame on the inside, I will lose some height at the top as opposed to other doorways.

Will I have enough clearance later to install a box with a standard size door?

• interior door
• opening dimensions