Replies

1. 
   highfigh | Apr 02, 2006 06:36am | #1

   Look at the end grain and the answer may be there. If it's plain sawn, it'll react differently from quarter sawn. Quarter sawn is much less likely to warp badly.

   "I cut this piece four times and it's still too short."
2. 
   gb93433 | Apr 02, 2006 06:43am | #2

   If you understand how wood is dried and then steamed it makes sense. That is a very common problem. You are dealing with the tension and compression in the wood.

3. 
   docotter | Apr 02, 2006 06:55am | #3

   Sounds like it's case hardened. The kiln operator should be able to manage this problem in general, however, white oak is apparently one of the more difficult species, especially the thicknesses greater than 4/4. If you're interested, Hoadley's book Understanding Wood has a discussion on case hardening and its management in the kiln.

   Maybe you should see if you can return the stock as defective. If the case hardening is really bad, not only is it useless for your purpose, but it may be dangerous to work on the table saw.

4. 
   Jfrostjr | Apr 02, 2006 05:10pm | #4

   I suggest patience. Let the resawn pieces "rest" for a few days. See if they flatten themselves out before any drastic moves.

   Jerry

5. 
   PeteBradley | Apr 02, 2006 08:11pm | #5

   If it's case hardened (which it sounds like it is) you *might* get a decent board by resawing equal thickness off both sides.    You *might* (less likely) then be able to resaw that board with less warping.  Not what you wanted to hear, I'm sure.

   Pete

1. 
   zwood9 | Apr 02, 2006 08:51pm | #6

   thanks everyone for your input I think I will try to return and see if I can get this 8/4 in quarter sawn instead I let a couple of the boards rest from last week and put them between a couple of the heavier 8/4 boards and they flattened quite a bit but still a noticeable warp in them ,live and learn I think everyone is right about it being case hardened how does one tell ahead of time? about this problem!