Cost lever
Prehung door
A complete door unit — slab already hung on hinges inside a new frame, with the sill and weatherstrip — that installs as one piece.
What it means for you
Usually the better replacement buy: you get a fresh frame, sill, and seals set square as a unit, instead of hoping an old frame is still true. It costs more than a slab and needs more install work (and a proper sill pan), but it seals and operates better.
Where you'll see it
The default on most entry-door replacement quotes.
Related terms
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