bottom board

Terry terry@farrellpiano.com
Tue, 18 Jan 2005 06:34:42 -0500


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Last one I did, I used a salvaged bottom board off an old Knabe upright! =
 It was on a 1970s Kimball studio - a bit of overkill - and definitely =
an slap in the face of stray Knabe parts (maybe the fireplace would have =
been a more dignified death?).

Any good hardwood I should think. Hard maple might be my first choice. I =
would want to edge-bond the flitches with epoxy rather than hide glue =
(although the water-resistant TightBond should work well also). You =
might want to avoid a ring-porous hardwood (like red oak) - only because =
it might rot out real quick if it ever got a quick dunking in a minor =
flood. I might also be tempted to go with a nice piece of marine plywood =
(although, I suppose a good piece of exterior-grade ply would be okay). =
A good grade of marine ply will have water-proof glues and will not have =
voids in the plies. Anyone else have an opinion on plywood? Would there =
be too much flex in it - I shouldn't think a foot-wide piece, secured =
along both edges, would wiggle too much. I haven't used plywood though, =
so I am not recommending it, but rather asking. I guess the ultimate =
might be a maple multi-ply pinblock resawn in half - now there's a piece =
of plywood!!!

Terry Farrell
  ----- Original Message -----=20
  From: Jack Houweling=20
  To: pianotech=20
  Sent: Monday, January 17, 2005 10:17 PM
  Subject: bottom board


  Hello

  I am replacing a bottom board on an old upright and would like to know =
what would be the preferred choice of wood, or is there any? =20

  Jack Houweling
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