Cut the door to length with a portable circular saw.
How to hang a new door on existing hinges.
Remove the trim molding around the existing door on both sides of the wall with a pry bar.
One about 2 inches above the top hinge and the other about 2 inches from the center hinge.
Next place your hinge on the door and trace around the hinge with a pencil.
Clamp a straightedge to the new door and score the cut line with a sharp utility knife.
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.
Hang your new door and test fit everything.
Mortise the hinge openings using a chisel and utility knife photo 4.
If the old door was trimmed at the bottom and you were happy with the gap at the floor cut the new door to match.
To install door hinges on a new door measure and mark where your hinges need to go on the door frame and on the door you re hanging.
Install a new door lock and door knob by inserting the latch through the hole for.
Measure the old door to determine what size to cut the new door.
If the holes on your new hinge plates don t match the holes in the screw holes in the door jamb drill pilot holes for the new screws.
Drill pilot holes for the hinge hardware so that you don t accidentally split the door s edge.
Use a utility knife to score the outline.
Knock the pins out of the hinges with a nail set or punch and a hammer and lift the door out.
Set old door on top of new door and transfer the hinge mortise locations to the new door using a combination square.
Once you ve finished mortising the hinges set the door upright and bore the lockset holes.
Install the hinge knuckles lock set and door knobs.
With a sharp chisel and hammer cut the wood in the shape of the hinge.
If your door sticks make a mark on the edges where it s not closing flush.
Check that the door jamb on the hinge side is plumb and shim as necessary.
If the holes in the jamb are too large for the screws use wood glue to secure a short portion of dowel tightly in the hole.
How to hang a door in an existing jamb.
To do this place both doors next to each other on the thin long sides with the hinges on the old door facing up.