[pianotech] Bottom Board Material

[johnparham at piano88.com]

Ed,

When you say "Sturdy Floor" plywood, do you mean 3/4" plywood you can
get from Lowes or Home Depot?

-John Parham

> -------- Original Message --------
> Subject: Re: [pianotech] Bottom Board Material
> From: Ed Foote <a440a at aol.com>
> Date: Fri, February 18, 2011 8:58 am
> To: pianotech at ptg.org
> 
> 
> If I was using a laminate, I would at least use "Sturdy-floor" plywood, it has all the gaps filled and is moisture resistant.   However, if you have a bunch of maple laying around, I would think three pieces, jointed together, would be preferable. 
> 
> 
> Ed Foote RPT
> http://www.piano-tuners.org/edfoote/index.htmll
> 
> 
> 
>  
>  
> >>I will be fabricating a new bottom board for a customer's vertical piano (moisture/mold damage). Any opinions on the best material for the job?
>  
>  I suppose some sort of plywood. I am using a hardwood veneered gazillion-ply plywood for another project and am surprised at how soft it is - I don't think that will be the best thing. 
>  
>  Or should I just make it out of a couple pieces of edge-glued (some sort of water-proof glue) hard maple? I have tons of that in my shop - I would have to make a trip to the lumber yard for plywood.