Installing Prehung Doors

Positioning and Leveling the Frame

  • Slide the trim assembly into place from the other side of the opening, but do not tack it.
  • Check the frame at the bottom.  If the finish flooring is already installed, the jamb should fit snugly but not too tightly against the flooring on each side.
  • If the finish flooring ins not installed, measure up from the subfloor 1/2" for carpet and  3/16" for vinyl.
  • Mark these measurements on each side of the door frame. 

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