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Lumber may be supplied either rough-sawn, or surfaced on one or more of its faces. Rough lumber is the raw material for furniture-making, and manufacture of other items requiring cutting and shaping. It is available in many species, including hardwoods and softwoods , such as white pine and red pine , because of their low cost.
According to geographer Michael Williams, by 1860, about 153 million acres of forest had been cleared for farms, and another 11 million acres cut down by industrial logging, mining, railroad construction, and urban expansion. A fourth of the original forest cover in the eastern states was gone.
Only a small number of sleepers and rails of the Main Branch are still in situ today, but the route can be clearly distinguished. The wooden tramway of the Main Branch was constructed from approximately 3 by 6 inches (76 mm × 152 mm) tÅtara rails, laid onto rough-sawn logs of various diameters.
Quarter sawing or quartersawing is a woodworking process that produces quarter-sawn or quarter-cut boards in the rip cutting of logs into lumber. The resulting lumber can also be called radially-sawn or simply quartered .
West of the Rocky Mountains the rivers were obstructed by falls and rapids, so boats had to be light enough to carry on portages. In 1811 David Thompson of the North West Company introduced the use of canoes on the Columbia River, made of split or sawn cedar planks. The NWC and the HBC continued the practice of using canoe-like wooden-plank ...
In the narrow sense of the terms, wood, forest, forestry and timber/lumber industry appear to point to different sectors, in the industrialized, internationalized world, there is a tendency toward huge integrated businesses that cover the complete spectrum from silviculture and forestry in private primary or secondary forests or plantations via the logging process up to wood processing and ...