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Old 06-06-2010, 11:52 AM
taylorcc taylorcc is offline
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Join Date: Oct 2005
Location: Cape Cod, Massachusetts, USA
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Wood gains or loses moisture until it is at equilibrium with its environment. If you put a wood guitar and a wood (probably plywood) case in a room where the relative humidity is 50%, the guitar wood and the case wood will eventually gain or lose moisture until they contain 9% moisture.

The case, being thicker and with perhaps glue layers impeding the flow of moisture, will take longer to reach equilibrium.

The moisture content does vary according to wood species, but they are similar.
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2009 CA Cargo Raw, 2006 Collings OM-1 SS light build, 2004 Taylor 714ce, 2000 Taylor 310K, 1991 Martin HD-28, 1971 Martin 0-18, 1967 Guild F-30

2006 Ovation Legend 6756LX 12 string, 2004 Taylor 354ce 12 string, 1976 Guild G312-NT 12 string (dreadnaught shape)

1966 Martin T-15 tiple, Mele koa ukulele
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