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Air-drying timber stack. Wood drying (also seasoning lumber or wood seasoning) reduces the moisture content of wood before its use. When the drying is done in a kiln, the product is known as kiln-dried timber or lumber, whereas air drying is the more traditional method.
In North America, logs reach equilibrium moisture content at about 6% and 12%; [8] since most kiln-dried logs are dried down to about 18% to 20% moisture content, kiln-dried logs can be expected to shrink and settle over time, but to a lesser extent than green logs.
Green wood is considered to have 100% moisture content relative to air-dried or seasoned wood, which is considered to be 20%. Energy density charts for wood fuels tend to use air dried wood as their reference, thus oven dried or 0% moisture content can reflect 103.4% energy content.
Consumer grade hydraulic log splitters were developed to be powered by electricity, gasoline, or PTO of farm tractors. In 1987 the US Department of Agriculture published a method for producing kiln dried firewood, on the basis that better heat output and increased combustion efficiency can be achieved with logs containing lower moisture content ...
A Eucalyptus being felled using springboards, c. 1884–1917, Australia McGiffert Log Loader in East Texas, US, c. 1907 Lumber under snow in Montgomery, Colorado, 1880s Logging is the process of cutting, processing, and moving trees to a location for transport .
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Built in 1640, C. A. Nothnagle Log House, located in Swedesboro, New Jersey, is likely the oldest log cabin in the United States. A conjectural replica of the log cabin in which U.S. president Abraham Lincoln was born, now at the Abraham Lincoln Birthplace Mortonson–Van Leer Log Cabin in New Sweden Park in Swedesboro, New Jersey A replica log cabin at Valley Forge in Pennsylvania A log house ...
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