Line up the two hinge plates so that the ones on the door match the ones in the jamb.
How to hinge one door to another.
Slide the hinge pins into place and remove the blocks from the door.
New doors also known as door blanks have smooth sides without any existing hinge locations.
Connect the door to the jamb.
This will let you check the the new hinge plates will be in just the right spot.
According to international code standards interior doors the ones that allow passage from one room to another are required to be at least 80 in height and 32 wide.
If you re hanging new doors onto old frames you will need to cut or mortise new hinges onto the door.
Hold the door in place using blocks under the bottom to support it if necessary.
You will need to place a thin piece of similar wood in the side of the door for each unused hinge slot for a good appearance.
Now it was time to mortise out the hinges.
Likewise you should place wood in the old door frame to fill in the hinge slots.
You can move the door and move the hinges to the new location by chiseling the wood door.
To make your doorway accessible a 36 door is ideal.