Night Stand Restoration Help

[Lewill2]

I have an antique night stand type of table that has been in the family for a number of years. The problem is the top has gotten wet and is warped. The top is warped so bad that it has come loose from the rest of the piece. My question is, is there a way to get the top straight enough to re-glue/screw it to the frame again?

[oldgoaly]

Well it depends how bad it is warped and the way it is put together, I have had some luck wetting  the board, inverting it and putting weight on it to get it to flatten out. You can't go to heavy to quick and then it needs to dry out again. They steam bend wood so it can be done that way too.

[scottg]

Can I see the table?
  This has shown to be hard for me to explain in words. sorry.
 
  Often, if the wood just got wet irregularly,
 namely the top had a varnish and the bottom didn't and it was in a damp garage sucking up water from one side. ...........
 Or one time a roof leaked a little onto a paper cutter's board........
 
  One side wet and the other dry??

 Sometimes all you really have to do is equalize the water. In the case of the paper cutter board I just set it against the wall with the humped side facing the woodstove a few feet away.
 It took about a week but it came back smooth as 20 year old Bourbon.

 With all warps and cups in wood, you have a concave side and a convex side. The wood is wetter and has swelled on the concave side, and is drier on the convex and shrank.
 There have been times all I had to do was flop a plank of wood onto grass damp with morning dew, in the sun.
 Put the concave (dish) side down so it can suck up a little water and the sun will dry out the convex (hump) side.
 yours Scott

[Lewill2]

No pictures at the moment but that explanation might explain what happened. The top had gotten wet from spilled water, the bottom isn't sealed with any finish. I think the top board is one piece walnut. I currently have it in my unheated second floor of the garage and the temperature has been all over the place the last few weeks, anywhere from -4 to upper 50's. I guess I need to bring it into the house to dry out and see where it goes from there.

The temperature has changed so fast a few times that everything in the garage that is metal has been covered in condensation so I guess the wood probably picked up a lot of moisture too.

[johnsironsanctuary]

I had a small slanting desk that was warped when I got it.  I sawed it in half at the apex of the courve. I flipped one half, glued it back together as an 'S' and planed it flat. The top was not much thinner and it looked good again. If the warp was more severe, I would have made two saw cuts.