Here's a quick list of url's for searching for material specifications and properties.  One of our readers had lost his list, so maybe it is here.

http://www.engineersedge.com/manufacturing_menu.shtml

http://metals.about.com/cs/properties/l/blproperties.htm

http://www.builditsolar.com/References/materialspecrs.htm#Wood

Finally, for those whom are older and remember that Wood was once used for building aircraft, here is the old bible of Wood.

http://www.fpl.fs.fed.us/products/publications/several_pubs.php?grouping_id=100&header_id=p

The Subject Title, itself, is a good wording for a google search.

Joel
Over the Hill Materials Engr