If the doorknob is on the left you need a left handed door.
Hang door without hinges.
Set the door frame in the opening with the jamb resting on the finished floor photo 2 or on a spacer.
To do this place both doors next to each other on the thin long sides with the hinges on the old door facing up.
Using both hands lift the door off the hinge knuckles.
Some blank doors have a specific swing direction.
Open the door and stand with your back to the hinges.
If you re hanging new doors onto old frames you will need to cut or mortise new hinges onto the door.
Most doors require a minimum of two hinges.
If you are hanging a slab door to replace an existing door and you still have the original door you can measure your new door slab to fit the frame by aligning it with the old door.
Screw the hinge side jamb to the stud remove the door from the frame and set it aside.
Align the old and new door slabs if you have the original door.
New doors also known as door blanks have smooth sides without any existing hinge locations.
If your door sticks make a mark on the edges where it s not closing flush.
One hinge is located 7 inches from the top of the door frame and the other hinge is located 11 inches from the bottom of the door frame.
Leave the wall side knuckles attached to the door jamb.
Hang your new door and test fit everything.
The strike side the side with the lockset of these doors has a beveled edge so the door can swing freely.
If the knob is to the right select a right handed door.
Remove the hinge leaves from the jamb.
Measure this distance and mark the location on the frame and then do the same on the door that you re hanging.