Lumber or timber is wood Wood is a hard, fibrous tissue found in many plants. It has been used for centuries for both fuel and as a construction material for several types of living areas such as houses. It is an organic material, a natural composite of cellulose fibers embedded in a matrix of lignin which resists compression. In the strict sense wood is produced as that is used in any of its stages from felling Logging is the process in which certain trees are cut down by a lumberjack or machine, such as the feller buncher, for forest management and timber through readiness for use as structural material Material is anything made of matter, constituted of one or more substances. Wood, cement, hydrogen, air and water are all examples of materials. Sometimes the term "material" is used more narrowly to refer to substances or components with certain physical properties that are used as inputs to production or manufacturing. In this sense, for construction In the fields of architecture and civil engineering, construction is a process that consists of the building or assembling of infrastructure. Far from being a single activity, large scale construction is a feat of multitasking. Normally the job is managed by the project manager and supervised by the construction manager, design engineer,, or wood pulp Pulp is a dry fibrous material prepared by chemically or mechanically separating fibres from wood, fibre crops or waste paper for paper Paper is a thin material mainly used for writing upon, printing upon or for packaging. It is produced by pressing together moist fibers, typically cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets production. (The distinction between the two terms is discussed below.)
Lumber is supplied either rough or finished. Besides pulpwood Pulpwood refers to timber grown with the principal purpose of making wood pulp for paper production. However, pulpwood is also used as the raw material for some wood products, such as oriented strand board , and there is an increasing demand for pulpwood as a source of 'green energy' by the bio-energy sector. Trees raised specifically for pulp, rough lumber is the raw material for furniture Furniture is the mass noun for the movable objects intended to support various human activities such as seating and sleeping in beds, to hold objects at a convenient height for work using horizontal surfaces above the ground, or to store things. Storage furniture such as a nightstand often makes use of doors, drawers, shelves and locks to contain,-making and other items requiring additional cutting and shaping. It is available in many species, usually hardwoods Hardwood is wood from angiosperm trees . It may also be used for those trees themselves: these are usually broad-leaved; in temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Finished lumber is supplied in standard sizes, mostly for the construction industry, primarily softwood The term softwood is used to describe wood from conifers. It may also be used to describe these trees, which tend to be evergreen, notable exceptions being bald cypress and the larches from coniferous The conifers, division Pinophyta, also known as division Coniferophyta or Coniferae, are one of 13 or 14 division level taxa within the Kingdom Plantae. Pinophytes are gymnosperms. They are cone-bearing seed plants with vascular tissue; all extant conifers are woody plants, the great majority being trees with just a few being shrubs. Typical species including pine See Pinus classification for complete taxonomy to species level. See list of pines by region for list of species by geographical distribution, fir Firs are a genus of 48–55 species of evergreen conifers in the family Pinaceae. They are found through much of North and Central America, Europe, Asia, and North Africa, occurring in mountains over most of the range. Firs are most closely related to the cedars (Cedrus); Douglas-firs are not true firs, being of the genus Pseudotsuga and spruce A spruce is a tree of the genus Picea , a genus of about 35 species of coniferous evergreen trees in the Family Pinaceae, found in the northern temperate and boreal (taiga) regions of the earth. Spruces are large trees, from 20–60 metres (66–200 ft) tall when mature, and can be distinguished by their whorled branches and conical form. The (collectively known as Spruce-pine-fir Part of a larger group of tree species known as softwoods, in the wood industry, Spruce-pine-fir refers to Canadian woods of similar characteristics that have been grouped for production and marketing. Mainly used to make dimension lumber for home building and panel , the SPF species have moderate strength, are worked easily, take paint readily,), cedar Cedrus, is a genus of coniferous trees in the plant family Pinaceae. They are native to the mountains of the western Himalaya and the Mediterranean region, occurring at altitudes of 1,500–3,200 m in the Himalaya and 1,000–2,200 m in the Mediterranean, hemlock There are between eight and ten species within the genus , with four species occurring in North America and four to six in eastern Asia, but also some hardwood, for high-grade flooring.
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Terminology
In the United Kingdom The United Kingdom of Great Britain and Northern Ireland[note 7] is a sovereign state located off the northwestern coast of continental Europe. It is an island country, spanning an archipelago including Great Britain, the northeastern part of the island of Ireland, and many small islands. Northern Ireland is the only part of the UK with a land and Australia For at least 40,000 years before European settlement in the late 18th century, Australia was inhabited by indigenous Australians, who belonged to one or more of the roughly 250 language groups. After sporadic visits by fishermen from the immediate north and discovery by Dutch explorers in 1606, Australia's eastern half was claimed by Britain in 177, timber is a term also used for sawn wood products (that is, boards), whereas generally in the United States ^ b. English is the de facto language of American government and the sole language spoken at home by 80% of Americans age five and older. Spanish is the second most commonly spoken language and Canada The land occupied by Canada was inhabited for millennia by various groups of Aboriginal peoples. Beginning in the late 15th century, British and French expeditions explored, and later settled, along the Atlantic coast. France ceded nearly all of its colonies in North America in 1763 after the Seven Years' War. In 1867, with the union of three, the product of timber cut into boards is referred to as lumber. In the United States and Canada, timber often refers to the wood contents of standing, live trees that can be used for lumber or fibre production, although it can also be used to describe sawn lumber whose smallest dimension is not less than 5 inches (127 mm)[1] such as the large dimension and often partially finished lumber used in timber-frame Timber framing , or half-timbering, is the method of creating structures utilizing heavy timbers jointed via pegged mortise and tenon joints construction. In the United Kingdom the word lumber has several other meanings including unused or unwanted items.
Note that the word lumberjack A lumberjack is a worker in the logging industry who performs the initial harvesting and transport of trees for ultimate processing into forest products. The term usually refers to a bygone era when hand tools were used in harvesting trees principally from virgin forest. Because of its historical ties, the term lumberjack has become ingrained in is used in the UK and Australia to refer to North Americans who fell standing trees, and so the word lumber conjures images of what North Americans call timber, and vice versa.
"Timber!" is also an interjection that lumberjacks often shout out to warn others that a cut tree is about to fall.
Sat, 14 Aug 2010 08:42:07 GMT+00:00
Toronto Star We love a bit of tree as much as the next bloke, and so, for fear of being delivered an arrest warrant for crimes against lumber (from wood-loving Canucks ...
