A prehung door is a door that already comes mounted in its frame, with the hinges attached, so it’s ready to install as a full unit.

Quick Scoop

Instead of buying just the door slab by itself, you get the door, frame, and hinges together. That usually makes installation easier and faster, especially for new builds or when replacing a damaged door frame.

What it includes

  • Door slab.
  • Frame or jamb.
  • Hinges already attached.
  • Sometimes pre-drilled holes for hardware.
  • For exterior doors, weatherstripping may also be included.

Why people choose it

  • Easier installation than a slab door.
  • Better fit when you’re replacing the whole opening or frame.
  • Good for exterior doors because it can help create a tighter seal.

Simple example

If your old door frame is warped, a prehung door lets you replace the whole setup at once instead of trying to fit a new door into a damaged frame.

If you want, I can also explain the difference between a prehung door and a slab door in one quick table.