Panel thickness question

[Erwinspiano@aol.com]

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Greg
Which Part?
 Dale
 
 
 

Dale,
How do you determine this?  Is there some formula?

Greg Newell



At 09:51 AM  2/18/2005, you wrote:
>   Dave
>   Another  variable to keep in mind is that many of us are using sitka 
> spruce  panels & the older designs used predominantly a softer eastern 
>  wood. Softer wood under compression requires more thickness for strenght  
> to survive. WHere as Sitka is stiffer denser having the greatest  strength 
> to wieght ratio. SO it can be thinner in the designs of any  kind. It 
> depends on your idea of mass in the panel too.
>   I keep that in mind when I'm choosing panel thickness. This is  also a 
> variable that could effect part of the equation for hammer  selection.
>  I.E> many old Stwy A 2s had panels routinely .360  in the main part of 
> the panel. With Sitka .320 to 340 is plenty even  if you were stricitly 
> compression crowning.
>    Dale

 

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