[pianotech] Tool for Wood Selection at Lumberyard

jimialeggio jimialeggio at gmail.com
Wed Jun 30 19:13:39 MDT 2010


  Hi Terry,

This is an interesting question, especially with tone grade spruce.

After a number of bad, expensive Sitka purchases I've taken a different 
route. As you mention, its hard to see the endgrain and/or differentiate 
endgrain from endgrain saw marks. Another problem is that run-out can 
blow away stock quite aggressively, and in my experience its hard if not 
impossible to read the runout in the rough stock. I'm giving up on 
wholesalers who are fine for lots of other stuff, but not for this 
particular application.

So I'm taking a different route. Future purchases will be red spruce 
which is indigenous and plentiful in NE.   Not only that, and this is 
the kicker for me, there are any number of small, 1 or 2 man quarter and 
radial sawn specialists in NE that I can talk to in person, and specify 
exactly what I want before they saw...and I don't need to buy 
1000bf...2-3 hundred is fine.

Red Spruce's strength #'s are very close to sitka's, and  I'm of the 
opinion that the spruce used for any board RC&S or otherwise is more 
dependent the empirical experience of seeing how it performs in relation 
to the spreadsheet predictions rather than assuming that only one wood, 
ie sitka,  will work.  I actually think that sitka is the default rc&s 
wood, because, quite reasonably it is indigenous to Washington State 
where Del was developing his approach to  rc&s  design.

Doesn't answer your reading-the- endgrain question, but I understand why 
you want to be careful.

Jim I





-- 
Jim Ialeggio
grandpianosolutions.com
978- 425-9026
Shirley, MA



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