myths

[Ron Nossaman]

William Benjamin wrote:
> Dean,
> 
> When the wood of a pin block expands, it pushes out into the void space of a
> hole.  Does that make sense?
> 
> William


That's what my little graphic below is intended to show.
Ron N

------------------------------------------
> In solid wood, the holes get bigger with humidity increase, and smaller with
> humidity decrease. Pinblocks are the reverse. 
> The reason is the cross ply lamination.
> 
> Dry:
> (  )
> I  I
> (  )
> I  I
> 
> Damp:
> )  (
> I  I
> )  (
> I  I
>