The true firs, called true firs to distinguish the wood from Douglas-fir, consist of more than 40 species in North America, but only seven species produce commercial lumber. In eastern North America, ...
Douglas-fir (Pseudotsuga menziesii) is one of the premier species of the Western forests. Not only is the wood exceptionally strong for its weight, but the trees are abundant. Trees can grow over 250 ...
The U.S. Forest Service has made forest thinning one of its top priorities, particularly in fire-prone and unhealthy dry forests. But environmental groups say dense Douglas fir plantations on the wet ...
The bill requires state-funded building projects to include design specifications for U.S.-sourced spruce-pine-fir, known as ...
Add Yahoo as a preferred source to see more of our stories on Google. U.S. builders pay a premium for the spruce, pine and fir (SPF) lumber that B.C. produces and could soon face additional tariffs ...
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