In a message dated 10/24/1999 8:29:07 PM, you wrote: <<Most pressure-treated lumber is yellow pine.>> Ken; This is true but...........since the "treatment" consists of pressurizing a vessel with copper sulfate and various other chemicals I wouldn't recommend its use on something like a soundboard press. The chemicals will 'stain' light colored wood even years after it has dried out to the touch. Probably would not be a factor for the length of time a board would be in the press but>>>>>>>>>>. Also the dust from "pressurized lumber is slightly toxic and while it is easy to wear a particulate mask while working with it, especialy sanding the smooth curves, it would be much better to just use "pine" to begin with. Yellow pine is not a single homgenious specie , rather it is a collection of various sub specie, such as Rocky Mountain Yellow Pine, Southern Yellow Pine, Long Leaf Yellow Pine, Short Leaf Yellow pine and numerous others classified as "Yellow Pine". Of course there are many many pines that are not classified as "yellow pine' such as Ponderosa pine and many others. So which Yellow Pine are you searching for? The answer is the pine lumber you can find in your local lumber yard is probably some specie of "yellow pine". The trick to getting the most strength from this, or any, wood is to get planks cut as nearly quarter sawn as possible. It takes some sifting through piles of lumber but it is worth the effort. Tip lumber marked S/P/F, or SPF, may or may not be pine as the marking indicates that there may be (probably is) Spruce, Pine and Fir all mixed together in the same bundle. Just some more thoughts. Jim Bryant (FL)
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