Author Topic: Is there a way to fix a warped door?  (Read 2770 times)

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Offline Alex

  • Posts: 7653
Is there a way to fix a warped door?
« on: February 09, 2021, 04:27 PM »
I have a door in my house that is slightly warped, and it leaves a bit of a gap at the top, maybe 1 cm wide. It is drafty and unsightly and would like to solve it. Anybody has an idea what could be done?



A centimeter gap at the top.



But tight at the bottom. Also tight on the other side where the hinges are, it is only the top corner that bends away.



It leaves an unsightly gap on the other side too.


 

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Offline Frank-Jan

  • Posts: 1204
  • Dutch Canadian living in Belgium
Re: Is there a way to fix a warped door?
« Reply #1 on: February 09, 2021, 05:00 PM »
I would scribe the doorframe, and move the strikeplate in a bit. I did this a couple of times, sometimes I used my supercut, but I also used a stanley 78 plane which I borrowed from the homeowner where I was hanging new doors in an old house where the doorframes bowed and weree a bit crooked (scheluw).

/edit, got the number for the stanley plane wrong
« Last Edit: February 09, 2021, 05:13 PM by Frank-Jan »

Offline Michael Kellough

  • Posts: 5277
Re: Is there a way to fix a warped door?
« Reply #2 on: February 09, 2021, 05:34 PM »
Don’t know of a way to un-warp a door.

Here is an option, scribe a piece of laminate to meet the warped door and contact cement it to the jamb, after dealing with relocating the strike plate. On the door side of the jamb fill the new hollow space with a two part polyester resin fill (we call it Bondo). Then you can paint.

Offline Frank-Jan

  • Posts: 1204
  • Dutch Canadian living in Belgium
Re: Is there a way to fix a warped door?
« Reply #3 on: February 09, 2021, 05:51 PM »
If you take something off the lower part of the jamb, instead of building the upper part up, the door will close further and you don't have to build up the head jamb.

Offline Michael Kellough

  • Posts: 5277
Re: Is there a way to fix a warped door?
« Reply #4 on: February 09, 2021, 05:53 PM »
If you take something off the lower part of the jamb, instead of building the upper part up, the door will close further and you don't have to build up the head jamb.

I had the impression that it is a steel jamb. If I’m wrong I like your idea.

Offline Alex

  • Posts: 7653
Re: Is there a way to fix a warped door?
« Reply #5 on: February 09, 2021, 05:59 PM »
Thanks for the replies guys. It is all wood, so taking a bit off is no problem.

I was originally thinking of doing something to the door, but if doing something to the jamb will work instead, that's fine by me too.

Offline DeformedTree

  • Posts: 1371
Re: Is there a way to fix a warped door?
« Reply #6 on: February 09, 2021, 06:20 PM »
what is the construction of the door?

Offline Alex

  • Posts: 7653
Re: Is there a way to fix a warped door?
« Reply #7 on: February 09, 2021, 06:49 PM »
what is the construction of the door?

It is a solid pine panel door like the one on the left, including the glass, but fitted with a layer of 3 mm hardwood veneer on both sides like the door on the right.

 

Offline Sparktrician

  • Posts: 4187
Re: Is there a way to fix a warped door?
« Reply #8 on: February 09, 2021, 07:02 PM »
I have a door in my house that is slightly warped, and it leaves a bit of a gap at the top, maybe 1 cm wide. It is drafty and unsightly and would like to solve it. Anybody has an idea what could be done?

But tight at the bottom. Also tight on the other side where the hinges are, it is only the top corner that bends away.

It leaves an unsightly gap on the other side too.


Alex, is the door frame plumb on both sides?  If not, you might want to consider making the frame plumb to get the door to fit right. 
- Willy -

  "Show us a man who never makes a mistake and we will show a man who never makes anything. 
  The capacity for occasional blundering is inseparable from the capacity to bring things to pass."

 - Herman Lincoln Wayland (1830-1898)

Offline FestitaMakool

  • Posts: 1013
Re: Is there a way to fix a warped door?
« Reply #9 on: February 09, 2021, 07:02 PM »
Alex, you could try placing a wedge in the lower tight closing corner, lock the door by the door latch as usual.
It will take some time, and you might need to change wedge size from narrow to wider during the process. And I will off corse mean that most of the time the door will have to be closed.
I’ve done it before, and it may work well. In some situations it’s the door frame that has moved with the wall, leaving the door “warped”. Try measure which is warped. It could be a more labourer fix to re-attach the door frame if the door is straight. You will also need to scribe frame filler and re-frame though. Since it’s pine, the “forced reverse warp” may work.
“The Stig” Yes, it is true, at least some part of it..
“If you have an old Land Rover and a fit wife, you’re most likely always busy”

Offline FestitaMakool

  • Posts: 1013
Re: Is there a way to fix a warped door?
« Reply #10 on: February 09, 2021, 07:08 PM »
Also, I don’t know how your hinges are, but if it is pin and receiver, stacked hinges, there’s this tool available to persuade the hinges a bit: (It’s not a very crafty way of fixing larger gaps, but for small adjustments these are great!)



“The Stig” Yes, it is true, at least some part of it..
“If you have an old Land Rover and a fit wife, you’re most likely always busy”

Offline DeformedTree

  • Posts: 1371
Re: Is there a way to fix a warped door?
« Reply #11 on: February 09, 2021, 08:02 PM »
if the door frame is good, I wouldn't mess with that.  Especially knowing it's built into the house.

I assume this is a bit of an experiment/why not try something situation with the old door verses just buying a replacement.

If it's old, and been that way a long time, maybe you can treat it like a slab that needs flattening. Make a router sled and make it flat, then add back material (thicker skins).

I don't think you will bend it back.  But would be fun to see you steam it in a hot shower and then clamp it in a fixture and see what happens.

Offline Oldwood

  • Posts: 491
  • Alberta, Canada
Re: Is there a way to fix a warped door?
« Reply #12 on: February 09, 2021, 08:48 PM »
I would scribe the latch side stop and attach a strait edge made of plywood or something stable in line with the scribe line, then use a router to trim the stop taking light cuts with each pass.

If you have a router with template rings you could use one of an appropriate size and set the strait edge back from the scribe line the difference from the outside of the template ring to the cutter.

This would leave a small section to trim by hand at the bottom where the router cutter stops.

The latch plate would need to move in also.

I don't think you will have any luck trying to flatten the door so working the jamb would be the better option.

The jamb looks solid in the opening or I would suggest trying to to move the jamb. I would not try to move the top latch corner only but move all 4 corners a little bit in the proper direction by giving them a good smack with a heavy hammer onto a block to spread the load. You would need to move each corner about 2.5mm to get your 10mm gap to close. You would know best what the chances are of moving he jamb.

Good luck with it.


Real knowledge is to know the extent of one's ignorance.
Confucius

Online Cheese

  • Posts: 8887
Re: Is there a way to fix a warped door?
« Reply #13 on: February 10, 2021, 12:13 AM »
I'd jack with the jamb stop...easiest, simplest and the least intrusive if you eventually decide to change out the door.

Offline DeformedTree

  • Posts: 1371
Re: Is there a way to fix a warped door?
« Reply #14 on: February 10, 2021, 12:28 AM »
-Go full orthodontist with it. Mount some studs to it in strategic locations, add cables and turn buckles. Give it a few more turns from time to time.

- Fillet door into 2 slabs, flip around, glue former front and back faces together as the new core. Curves now fit together and produces flat door.

- Find clear resin that can be built up in a lens shape on surface of door until you get to a shape optically it looks flat.

Am I serious....who knows, but these could be fun to try.

Offline hdv

  • Posts: 353
Re: Is there a way to fix a warped door?
« Reply #15 on: February 10, 2021, 06:26 AM »
In my previous home I had a lot of moisture, which caused the door to the cellar to warp. The first time around I used steam to make it straight/plane (?) again. I even built a steambox for that purpose. That lasted about 3 months. After that the door started warping again. Then I noticed that it was just one corner (the lower corner away from the hinges) that did this and decided on an experiment. I had a welder (that is really something I still want to learn myself) make a u-shaped profile with a slot for the lock and planed a rabbet on both sides of the door (the long side farthest from the hinges). I used glue and a few screws to fix the profile to the door (it needed some persuasion to fit in the profile, but some long clamps helped). After that I primed both metal and wood very thoroughly and painted the door. You really had to know this was done to the door to notice it after that. It lasted for years, until I sold that house. It might not be the most elegant solution, but the result was OK.
« Last Edit: February 10, 2021, 12:40 PM by hdv »

Offline deepcreek

  • Posts: 955
    • TimberFire Studio
Re: Is there a way to fix a warped door?
« Reply #16 on: February 10, 2021, 10:34 AM »
I don't have a fix beyond those suggested but I will comment that door movement is often the result of not finishing the top and bottom edges. 

It takes a bit of work to paint the bottom of a door and the tops are often skipped as well.  You need all six surfaces sealed to better protect against moisture changes.  This is especially important for exterior doors.

I would challenge anyone to check the bottom and tops of the doors in their house.  You might be surprised.
« Last Edit: February 10, 2021, 10:49 AM by deepcreek »
Joe Adams
TimberFire Studio
Houston, Texas

http://www.facebook.com/timberfire

Offline Sparktrician

  • Posts: 4187
Re: Is there a way to fix a warped door?
« Reply #17 on: February 10, 2021, 11:20 AM »
-Go full orthodontist with it. Mount some studs to it in strategic locations, add cables and turn buckles. Give it a few more turns from time to time.

- Fillet door into 2 slabs, flip around, glue former front and back faces together as the new core. Curves now fit together and produces flat door.

- Find clear resin that can be built up in a lens shape on surface of door until you get to a shape optically it looks flat.

Am I serious....who knows, but these could be fun to try.

Well, that would fit with Alexangelo's new status as an artist...   [big grin]  (Let's just hope he doesn't go full-on Van Gogh...)  [eek]
« Last Edit: February 10, 2021, 11:23 AM by Sparktrician »
- Willy -

  "Show us a man who never makes a mistake and we will show a man who never makes anything. 
  The capacity for occasional blundering is inseparable from the capacity to bring things to pass."

 - Herman Lincoln Wayland (1830-1898)

Offline Roseland

  • Posts: 688
Re: Is there a way to fix a warped door?
« Reply #18 on: February 10, 2021, 02:34 PM »
Would these work?



Andrew
TS55, MFT/3, OF1400, OF1010, CT26, RS100, ETS125, CXS, MFS400, DF-500, Zobos.

Offline FestitaMakool

  • Posts: 1013
Re: Is there a way to fix a warped door?
« Reply #19 on: February 10, 2021, 02:44 PM »
I don't have a fix beyond those suggested but I will comment that door movement is often the result of not finishing the top and bottom edges. 

It takes a bit of work to paint the bottom of a door and the tops are often skipped as well.  You need all six surfaces sealed to better protect against moisture changes.  This is especially important for exterior doors.

I would challenge anyone to check the bottom and tops of the doors in their house.  You might be surprised.

Yup! I’m not surprised.. it’s too common, except on front doors. It may have been a www thing some time ago. [big grin]
“The Stig” Yes, it is true, at least some part of it..
“If you have an old Land Rover and a fit wife, you’re most likely always busy”

Offline DeformedTree

  • Posts: 1371
Re: Is there a way to fix a warped door?
« Reply #20 on: February 10, 2021, 03:22 PM »
Would these work?

"video with bearded man"

Andrew

So orthodontics  [smile]

Kit probably cost more than many basic doors.

Offline Roseland

  • Posts: 688
Re: Is there a way to fix a warped door?
« Reply #21 on: February 10, 2021, 05:05 PM »
If you can get door for under £11.50 I’d like to know where from!

https://www.sws-eu.com/products/adjustable-door-straightener-fully-recessed/9587/

Andrew
TS55, MFT/3, OF1400, OF1010, CT26, RS100, ETS125, CXS, MFS400, DF-500, Zobos.

Offline Alex

  • Posts: 7653
Re: Is there a way to fix a warped door?
« Reply #22 on: February 10, 2021, 05:10 PM »
Thank you all for all your suggestions. I should have been more thorough in my initial diagnose of the problem, after all the things suggested in this thread I had a closer look at the whole and put a straight edge and a level against it. Turns out the door is not so badly warped at all, just a 2 mm difference between top and bottom.

The real problem is the jamb, it has been completely butchered. And the odd thing is, the jamb is wider on top where the gap is than at the bottom where there is no gap.  [blink]




I think the best thing to do is to scribe the jamb to the door and rout away a thin strip and then move the strike plate a centimeter in.

Thanks again.
 

Offline DeformedTree

  • Posts: 1371
Re: Is there a way to fix a warped door?
« Reply #23 on: February 10, 2021, 05:32 PM »
If you can get door for under £11.50 I’d like to know where from!

https://www.sws-eu.com/products/adjustable-door-straightener-fully-recessed/9587/

Andrew

thats a lot cheaper than I was expecting, heck, I don't even think you can buy a rod that long for that price.

Offline DeformedTree

  • Posts: 1371
Re: Is there a way to fix a warped door?
« Reply #24 on: February 10, 2021, 05:34 PM »
Measuring changes everything.

Slippery slope, next thing you know you will be tearing down walls to square everything up.

Offline Alex

  • Posts: 7653
Re: Is there a way to fix a warped door?
« Reply #25 on: February 10, 2021, 05:49 PM »
Slippery slope, next thing you know you will be tearing down walls to square everything up.

Lol, no, I've given up on that in this house a long time ago.

Offline FestitaMakool

  • Posts: 1013
Re: Is there a way to fix a warped door?
« Reply #26 on: February 10, 2021, 06:18 PM »
Haha, of course - it’s the wall that needs levelling [big grin]

Think you have found a good solution, as now you have discovered that you have a bespoke jamb, which will be even more bespoke.
“The Stig” Yes, it is true, at least some part of it..
“If you have an old Land Rover and a fit wife, you’re most likely always busy”

Offline Alex

  • Posts: 7653
Re: Is there a way to fix a warped door?
« Reply #27 on: February 10, 2021, 07:19 PM »
Think you have found a good solution, as now you have discovered that you have a bespoke jamb, which will be even more bespoke.

At least when I'm done, it all bespokes together.

Offline woodferret

  • Posts: 105
Re: Is there a way to fix a warped door?
« Reply #28 on: February 10, 2021, 08:43 PM »
If it somehow doesn't work out, you can do the North American thing and tack on a strip of narrow profiled stop to conform to wherever the door is in the jamb.

Offline Packard

  • Posts: 634
Re: Is there a way to fix a warped door?
« Reply #29 on: February 19, 2021, 09:38 AM »
If this is a fairly modern hollow-core door, I would replace it.  I had a similar problem with a brand new hollow core door that I got for a pocket door installation.

Many years ago, hollow-core doors had substantial wood around the perimeter and across where the lockset gets installed.  The paper honeycomb was glued to the plywood door skins. 

The hollow-core door that I bought had a birch veneer, which I thought was perfect for painting.  I painted it lying flat on sawhorses with Behr Marquis semi-gloss paint.  Once I painted it, the door warped.  It was worthless in the pocket track. 

I cut it up to dispose of it.  When I did so, I discovered that the honeycomb was not glued to the skins, that the skins were made of cardboard with a thin veneer of birch, and the perimeter support was about 1" wide, so you are limited to saw down the door by about 1/2" per side. 

Also, they had only small blocks on either side for mounting the lockset. 

Apparently the moisture from the paint was sufficient to cause the warp.  Perhaps if I painted while on hinges, and if I coated both sides of the door the same day, the door would not have warped.

The solid core door cost $110.00.   Plus the cost of the hollow-core door that I threw out (and all the paint that went with it).  So the door ended up costing me $140.00 total.

If it warped like that, it is probably one of the crappy new generation hollow core doors.  I would seek out a solid core door.  Not only more substantial, but more attractive too.  (And heavier to carry around--a helper would have been nice.)


Offline Alex

  • Posts: 7653
Re: Is there a way to fix a warped door?
« Reply #30 on: February 19, 2021, 10:11 AM »
Packard, it is a solid panel door, but with a layer of veneer glued on. Pictures are above. Turned out the door is not as badly warped as I first thought, but most of the problem is in the door jamb. I scribed the jamb to the door and cut a thin stripe away so the door sits flush again.


Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.