I have access to a stack of leftover lumber, but it may be pressure
>treated. Can't tell from the color. Is there a simple test or way to
>determine this? I mostly want to know if there's some chemical in it
>that I want to avoid. I'd like to make some shelves but don't want to
>use treated lumber.
>
Not trying to be rude, but... whaddaya mean, you can't tell from the color? There's a *dramatic* color difference between treated and untreated pine, unless it's badly weathered. If it's badly weathered and still intact, it's probably treated. If you're still in doubt, cut a few inches off of one end to expose a fresh surface.
-- Regards, Doug Miller (alphageek-at-milmac-dot-com)