How to Replace a Pre Hung Door Gadsden AL

Steps

1. Read and understand all the instructions before beginning. Don't forget to read the door manufacturer's included instructions, too. They may have details specific to your door. There will be moments when it's inconvenient to stop and read directions.
2. Size up the job. Is there trim on both sides of the door, or will you need to patch plaster, drywall, or stucco when the door is replaced? Examine the door frame and notice anything about the floor, threshhold, or other surroundings that may cause trouble. Pull up a piece
3. Recruit an assistant or two. A door, especially an exterior door, is large and heavy, and you'll need somebody there to help lift it into place. You and your assistant will also help each other to shim the door and spot alignment on both sides at once. Also, one of you can hold something up while the other fastens it in place. Do not try this job alone.
4. Choose a mild, dry day, if this is an exterior door. This project involves taking the door all the way out of its frame, meaning that you'll have a wide, door-sized hole for a period of time. If you have the choice, avoid extreme temperatures and rainy weather.
5. Measure the door carefully and select the right door. A door is not something you will change often, so choose a classical styling and a sturdy design, especially for an exterior door. It is worth investigating the relative merits of steel, fiberglass, and wood and making an informed decision.
6. Paint the door before installing it, if you wish.
7. Gather all supplies. The moment with the door off or halfway up and the breezes blowing in is not the right time to stop and visit the hardware store.
8. Clear a work area. You'll need enough space on either side of the door to lay the door down, plus space for tools and materials. Plan in advance to move furnishings, flower pots, and any other obstructions out of the way.
9. Prepare the lockset in advance.Prepare the lockset, doorknob, and/or deadbolt. Rekey the lock, if you wish. Have it ready to go when the time comes to install it.
10. Remove the trim from both sides of the door. Using a nail puller to remove exterior trim with recessed nails.Remove the trim from both sides of the old door, exposing the door frame. If you will reuse this trim, take care to remove it gently and get it off in one piece. You can fill in old nail holes with putty before you repaint. If you will replace the trim, you may wish to save the old trim until you have measured and cut the new trim to the same size.
11. Separate the old door from its frame.
    • Remove the old door from its hinges.Remove the old door from its hinges, then carefully lift it off. Exterior doors are heavy! Then, make sure the longest screws are out of the hinges on the jamb side. There are a few screws that just hold the hinges to the jamb, and there are others that go all the way through to the frame.
12. Use a reciprocating saw to cut through old nails and shims.Separate the old door jamb from the frame. Unless you can find and pull the nails (they were probably driven in and puttied over), use a reciprocating saw with a metal-cutting blade to cut right through the nails. The reciprocating saw can also cut through screws, but they are usually made from hardened metal, so it will take a long time.
13. Tip the jamb out and remove it.When it is loose, tip the jamb out of the frame and remove it. Remove the threshhold if you are replacing it.
14. Clean up the opening. Pull remaining nails or parts of nails, or pound them in, flush with the surface of the frame. Also remove any old insulation or caulk.
15. Test fit the new door. Secure the door against opening (remember that it has no doorknob yet). With your assistant, set it into place and see how it hangs. You will be adjusting this fit in subsequent steps, but you can get a general idea of problems this way. Remove the door again, for the moment.
16. Trimming the flooring to match the new door. Check the frame for level and plumb and correct any major problems now. The rough opening should be about an inch wider and a half inch taller than the new jamb. If you need to trim or build up flooring to provide a level surface for the door, do that now.
17. Apply caulk.Apply generous beads of caulk along the bottom of the frame, parallel to the threshhold. This will be your weather- and waterproofing there, so be generous. Caulk is fairly inexpensive, and you can always wipe up excess. Look at the bottom of the new door and try to make the caulk match up with areas that will contact the door frame.
18. Tip the new door up onto the caulk. Center it in the opening and square it against the flooring so that the jamb is flush with the interior walls. Get the door near its final location.
19. Shim, starting at the very bottom of the hinge side. Stack shims pointing in opposite directions and drive them in until they are thick enough.Begin shimming between the jamb and the door frame. Stack wedge-shaped shims pointing in opposite directions and drive them in until they take up the required space. Start at the bottom on the hinge side, then at the opposite bottom corner. Proceed to the top of the hinge side, and the top of the opposite side. Then shim directly behind the top, middle and bottom hinges. You will be driving screws through the jamb, shims, and frame, so for the shim locations behind the hinges, put the shims directly behind the empty hole. Finally, shim opposite the top and bottom hinges and just above and below the deadbolt.
    • The objective of all this shimming is to center the jamb in the door frame and to square, plumb, and level the door. Use a piece of material of an appropriate thickness, probably about 1/8", to feel all the way around the door, to ensure that the spacing between the door and the jamb is consistent and even. This is somewhat a process of trial and error. Use the door itself to gauge where the frame must be to be square. Be patient and make adjustments as necssary, pushing the shims further in or pulling them out. It is worth being picky at this stage, since these adjustments will affect the fit and operation of your new door for years to come.
    • Also adjust the door location front to back. If the door is weatherstripped, look for even compression of the weatherstripping from top to bottom. If not, look for an even gap when the door is closed. The door jamb should also be flush with the wall, as much as possible. Remember, the trim needs to go back on at the end.
    • If the door has precut openings for the knob and deadbolt, make sure that they align properly as you shim the jamb.
    • Putting a screw through the jamb and shims will pull the jamb slightly towards the frame.
    • Shims can be used to correct the parallelogram of the jamb and to flex the wood in or out a little bit near the shim.
20. When the door is shimmed all around, you can test opening and closing it, but be sure to support its weight so that it does not pull out all your careful adjustments. Don't open it more than about 30 .
21. Install the screws through the shims, into the frame. Install the long screws into each hinge, through the shims, into the frame. These will hold the door in place. Keep in mind that the screws will pull the jamb toward the frame, so proceed this way: fasten, check, adjust, repeat. Here, the screws are hidden under the weather stripping.
22. Proceed around to the other shim locations and screw or nail through those into the frame, again checking and adjusting as you go. The door should be well supported now, so you can check opening and closing.
23. When the door jamb is level, plumb and square, install the deadbolt, doorknob, and strike plates. See the related wikiHows for those procedures.
24. Cut off the shims so that they are flush with the jamb and rough opening. You can use a small saw, but shims are generally made from soft enough wood that you can trim them by scoring them with a utility knife and snapping them off.
25. Insulate the space between the door jamb and frame. You can purchase very small rolls of fiberglass insulation or you can use another material. Do be careful of using the foam-in-place insulation, the sort that comes in a spray can. Some formulations can expand enough to push the door jamb out of place.
26. Replace the trim, adjusting it if necessary. The trim in the photos was shortened a bit and moved down on the inside and extended on the outside because the new door rests slightly lower than the old one.
27. Caulk around the trim or molding, inside and out. On an exterior door, this is weatherproofing; on an interior door, it is more of a cosmetic matter, done to prepare for paint.
28. Paint or finish the door, if you didn't already, and paint the trim to match its surroundings.
29. Install weatherstripping, kick plates, and any other accessories.

Tips

• When removing nails, protect the surrounding wood or wall with a block of wood beneath the hammer or nail puller.
• Walls and frames are not always square, level, and plumb. If you must compromise between an even door fit and perfection in the level or plumb of the jamb, favor the even door fit. It affects the smooth functioning of the door more than precise leveling.

Warnings

• Doors are large, heavy objects, and installing one requires at least one strong person on either side. Do not attempt this project alone.
• Always lift safely when handling heavy items. Use the knees, not the back.
• Read manuals and understand the safe operation of all the tools you will use.
• Wear appropriate safety gear: safety glasses, gloves, hearing protection, dust mask.
• Think ahead about the possible dangers of any operation and how you can avoid accidents.

Things You'll Need

• An assistant or two
• Replacement pre-hung door
• Shims
• Caulk, exterior grade
• Insulation (purchase in small batts or borrow a bit from the attic)
• Doorknob and deadbolt
• Replacement screws and nails
• Hammer
• Screwdrivers
• Nail puller
• Channel-lock pliers
• Reciprocating saw
• Power screwdriver (recommended)
• Caulk gun
• Bubble level
• Framing square
• Stepstool or short stepladder
• Kneepads
• Safety glasses

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