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Posted: 2/18/2021 1:48:38 PM EDT
 Attached File Attached FileGot a couple of doors warped. Tried laying them flat and weighting it down. Helped a little. Should I make some saw kerfs in those cross members to give it some flex? Glue and flatten with weight or no glue and threaded rod parallel across the door to pull it flat? Only a couple of doors out of 14. |
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Posted: 2/18/2021 1:53:16 PM EDT
[#1]
Are both sides finished the same way?
Even the number of coats of finish must be the same on both sides. |
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Posted: 2/18/2021 1:57:29 PM EDT
[#2]
Warped wood cannot be fixed.
It was cut from a leaning tree and grew that way to counter the effects of gravity. Google ‘reaction wood’. |
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Posted: 2/18/2021 2:26:41 PM EDT
[#3]
Quote HistoryQuoted: Warped wood cannot be fixed. It was cut from a leaning tree and grew that way to counter the effects of gravity. Google ‘reaction wood’. Generally this. It's really annoying to bring home lumber, let it sit a few days, plane it and have it take a bender, but it happens. You can do things to help like storing it flat, but once it takes a bend due to internal stress relief, it's really, really hard to make it straight again. Maybe steaming.... |
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Posted: 2/18/2021 2:27:21 PM EDT
[#4]
Quote HistoryQuoted: Are both sides finished the same way? Even the number of coats of finish must be the same on both sides. Front is more of a pickled finish. Old and dull. They’re solid wood pecky cypress. |
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Posted: 2/18/2021 2:32:08 PM EDT
[#5]
I considered steaming. I think it would just warp again.
It’s only 2 doors so I thought if it could cut shallow kerfs across those cross members to provide some flexibility, I could use a tension rod to pull it flatter. Intention is to refinish or paint cabinets. |
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Posted: 2/18/2021 2:49:39 PM EDT
[#6]
Lay it face down on a very flat surface. Take off those cross members and reinstall them. Even better if you could insert a strip of metal underneath them.
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Posted: 2/18/2021 3:05:20 PM EDT
[#7]
Quote HistoryQuoted: Lay it face down on a very flat surface. Take off those cross members and reinstall them. Even better if you could insert a strip of metal underneath them. I’ll have to look at that. Might work for these. |
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Posted: 2/18/2021 3:05:58 PM EDT
[#8]
Lay flat on concrete, park M1A2 Abrams on them for 24 hours. They will be flat as they will ever get.
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Posted: 2/18/2021 3:06:41 PM EDT
[#9]
Quote HistoryQuoted: Lay it face down on a very flat surface. Take off those cross members and reinstall them. Even better if you could insert a strip of metal underneath them. I’ll have to look at that. Might work for these. |
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Posted: 2/18/2021 4:09:04 PM EDT
[#10]
You are wasting your time and efforts. Please read this. It cannot be fixed, only replaced with good wood.
Reaction wood  It is the curse of every woodworker. The only way to get rid of it is to slice the wood into thin strips, alternatively flipping them and gluing them back together. That is why you don’t see properly laminated wood warp. Take it apart, identify which ones are warped, burn them. Buy the same kind of wood and rebuild it. Even if you reinforce with angle iron, you will always have trouble with it. It grew that way. Steaming, bending, forcing it will not work. It will always go back because it is in the molecular structure. |
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Posted: 2/18/2021 9:47:07 PM EDT
[#11]
The pictures don't help me understand the warp.
Is it a twist?, curl?, cup? If it's curled and it's from side to side it's because of moisture/humidity changed along with the way the doors are made. If so, is there something causing those 2 doors to be exposed to more humidity or a source of heat (lower humidity)? |
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Posted: 2/18/2021 11:06:53 PM EDT
[#12]
Yeah pictures don’t do it justice. It’s a curl I guess, turning out from the cabinet box.
I’m only messing with the two because there’s 12 others that are just fine. Prob have to remove and replace those cross members. If I had an M1 to park on it I would! |
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Posted: 2/19/2021 6:49:35 PM EDT
[#13]
you know if you're near Charlotte you could come by and use my woodshop
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Posted: 2/19/2021 7:20:30 PM EDT
[#14]
Quote HistoryQuoted: Yeah pictures don’t do it justice. It’s a curl I guess, turning out from the cabinet box. I’m only messing with the two because there’s 12 others that are just fine. Prob have to remove and replace those cross members. If I had an M1 to park on it I would! If you took the battens off the back, you could determine if they were flat or not. If not, you could try to plane them to be flat and reinstall. If it is reaction wood, planing will not flatten them. Alternatively, bond them on using an epoxy or "Bondo Wood Filler" as a "liquid shim" to fill the gap between the flat panel and the warped battens. <-- this approach is highly effective. If the battens come off and are flat, it is the boards. Re-assemble them alternating the growth ring directions - cup up, cup down, cup up, cup down,.... That should help flatten the panel. Reinstall the battens. |
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Posted: 2/19/2021 10:56:49 PM EDT
[#15]
Quote HistoryQuoted: you know if you're near Charlotte you could come by and use my woodshop I’ve got an old Craftsman table saw Thx! If I need to do more than just adjust them I will give you a shout. I’m only about an hour or so from that area. |
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Posted: 2/19/2021 10:58:29 PM EDT
[#16]
Quote HistoryQuoted: If you took the battens off the back, you could determine if they were flat or not. If not, you could try to plane them to be flat and reinstall. If it is reaction wood, planing will not flatten them. Alternatively, bond them on using an epoxy or "Bondo Wood Filler" as a "liquid shim" to fill the gap between the flat panel and the warped battens. <-- this approach is highly effective. If the battens come off and are flat, it is the boards. Re-assemble them alternating the growth ring directions - cup up, cup down, cup up, cup down,.... That should help flatten the panel. Reinstall the battens. I’ll see what all happens. Adjusting and maybe replacing them. Thanks all for the ideas. |
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