I'd like to make some 3/4" doors using hardwood edges (probably red oak)
arround a veneered MDF or plywood middle (glued solidly to the edges, not
free floating as a raised panel).
How wide can the edges be before I run into seasonal problems?
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9/11 was a premptive attack
On Mon, 6 Dec 2004 14:45:49 -0700, Drew Eckhardt wrote
(in article <[email protected]>):
> I'd like to make some 3/4" doors using hardwood edges (probably red oak)
> arround a veneered MDF or plywood middle (glued solidly to the edges, not
> free floating as a raised panel).
>
> How wide can the edges be before I run into seasonal problems?
>
>
I've seen David Marks do this on WWorks. His frame was about 3" if I remember
right. Look on diy.com for info
-Bruce
"Drew Eckhardt" <[email protected]> wrote in message
news:[email protected]...
> I'd like to make some 3/4" doors using hardwood edges (probably red oak)
> arround a veneered MDF or plywood middle (glued solidly to the edges, not
> free floating as a raised panel).
>
> How wide can the edges be before I run into seasonal problems?
>
You will always have "seasonal problems" if the RH varies. The question is
one of degree. You can determine the limits by consulting the tables at
http://www.fpl.fs.fed.us/tmu/publications.htm
This one includes good information on seasonal movement.
http://www.fpl.fs.fed.us/documnts/pdf1999/cho99a.pdf
The way you overcome the problem is to plan for worst case and don't miter.
On Tue, 7 Dec 2004 07:33:09 -0500, "George" <george@least> vaguely
proposed a theory
......and in reply I say!:
remove ns from my header address to reply via email
>"Drew Eckhardt" <[email protected]> wrote in message
>news:[email protected]...
>> I'd like to make some 3/4" doors using hardwood edges (probably red oak)
>> arround a veneered MDF or plywood middle (glued solidly to the edges, not
>> free floating as a raised panel).
>>
>> How wide can the edges be before I run into seasonal problems?
>>
>
>You will always have "seasonal problems" if the RH varies. The question is
>one of degree. You can determine the limits by consulting the tables at
>http://www.fpl.fs.fed.us/tmu/publications.htm
>
>This one includes good information on seasonal movement.
>http://www.fpl.fs.fed.us/documnts/pdf1999/cho99a.pdf
>
>The way you overcome the problem is to plan for worst case
>and don't miter.
>and don't miter.
>and don't miter.
<GGG> DAMHIKT. It simply pulls the whole thing to pieces. The only
alternative that I can see is some sort of flexible material in the
mitre joint, and make the joint quite wide.