spencal at nextlab12.calstatela.edu
Tue Feb 28 22:58:47 EST 1995
> What are the specific gravities (air dry) of the following timbers?
> Any mass/volume measure will suffice.
> White Oak; Quercus alba L.
> White Pine; Pinus strobus L.
> Sitka Spruce; Picea sitchensis (Bong.) Carr.
> Douglas Fir; Pseudotsuga menziesii
> Western Red Cedar; Thuja plicata D. Don
> Thanks a great deal, Shawn Miller
The latter three species are western American trees and are described in
detail, including densities (in lbs/ft3) in a book entitled "The Natural
History of Western Trees" by Donald Culross Peattie. The book is now out
of print but should be available in most well-stocked libraries. I can't
reccomend a source for info on the first two species. To convert density
to Specific Gravity, use a value of 62.4 lbs/ft3 for water.
Hope this helps,
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