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How to Hang a New Door

Replacing a door in an existing door frame is easier and much cheaper than pulling out the trim and frame and installing a prehung door, because you have the old door as a template.

By the DIY experts of The Family Handyman Magazine

How to Hang a New Door

Replacing a door in an existing door frame is easier and much cheaper than pulling out the trim and frame and installing a prehung door, because you have the old door as a template.

Match the doors

The kids shouldn’t have been playing floor hockey indoors with a real puck because those babies can go right through a hollow-core door. But the damage is done and now somebody (i.e., you!) has to replace the door. You have two choices. Yank the old door and jamb, trim and all, and replace with a prehung door. Or, spend less time and save money by installing a blank door slab in the existing jamb and leave the trim intact. Hanging a slab is easier than you think. All you need is a hammer and chisel, clamps, a square and a drill and a hole saw. Measure the width of the old door. Sizes are all standard, so you’ll be able to find a replacement at the home center.

Line up both doors and lightly clamp them together (Photo 1). Next, mark the new slab (Photos 2 and 3). Mortise the hinge openings using a chisel and utility knife (Photo 4). Once you’ve finished mortising the hinges, set the door upright and bore the lockset holes.

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. Mount the hinges on the new door and hang the door. If you don’t need any further adjustments, remove the door again, then finish it to match the rest of the woodwork and rehang it. Now it’s on to the next item on your fix-it list.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

    • Hammer
    • Clamps
    • 4-in-1 screwdriver
    • Corded drill
    • Hole saw kit
    • Safety glasses
    • Self-centering drill bit
    • Speed square
    • Utility knife
    • Wood chisel

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

    • Door blank

Comments from DIY Community Members

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February 06, 4:54 PM [GMT -5]

This process works well as I have used it to replace 6 interior doors in my home. But, don't forget the new door size may not be the same as the old door and some planing will be required. If you can, wire brush the old hinges to make them look new also.

February 06, 4:54 PM [GMT -5]

This process works well as I have used it to replace 6 interior doors in my home. But, don't forget the new door size may not be the same as the old door and some planing will be required. If you can, wire brush the old hinges to make them look new also.

December 27, 10:02 PM [GMT -5]

I tried one of the bracket installation systems called EZ hang that I ordered online and I was very pleased with it.

December 19, 9:47 AM [GMT -5]

Bracket installation systems are much easier and faster then using shims for beginners. There available at Home Depot in door aisle. Its called the Quick Door Hanger and is the same price as a pack of shims.

December 01, 11:52 AM [GMT -5]

My doors are not pre-hung. How do I build a new door opening from a hole in the wall?

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