Tree

===Timber===
{{main|Wood|Timber}}
[[File:Timberwork2.JPG|thumb|upright=1.2<!--fmt for low image-->|left|Roof trusses made from softwood]]

Timber, "trees that are grown in order to produce wood"<ref>{{cite web|title = timber {{!}} trees that are grown in order to produce wood|url = http://www.merriam-webster.com/dictionary/timber|website = www.merriam-webster.com|access-date = 3 September 2015|archive-date = 19 September 2015|archive-url = https://web.archive.org/web/20150919081941/http://www.merriam-webster.com/dictionary/timber|url-status = live}}</ref> is cut into lumber (sawn wood) for use in construction. Wood has been an important, easily available material for construction since humans started building shelters. [[Engineered wood]] products are available which bind the particles, fibres or [[Wood veneer|veneers]] of wood together with adhesives to form [[composite material]]s. Plastics have taken over from wood for some traditional uses.<ref>{{cite web |url=http://www.fao.org/docrep/004/Y3609E/Y3609E00.HTM |title=Environmental and energy balances of wood products and substitutes |last1=Scharai-Rad |first1=Mohammad |author2=Welling, Johannes |year=2002 |publisher=Food and Agriculture Organization of the United Nations |access-date=30 July 2012 |archive-date=9 November 2012 |archive-url=https://web.archive.org/web/20121109163747/http://www.fao.org/docrep/004/y3609e/y3609e00.htm |url-status=live }}</ref>

Wood is used in the construction of buildings, bridges, trackways, piles, poles for power lines, masts for boats, pit props, railway sleepers, fencing, hurdles, shuttering for concrete, pipes, scaffolding and pallets. In housebuilding it is used in joinery, for making joists, roof trusses, roofing shingles, thatching, staircases, doors, window frames, floor boards, parquet flooring, panelling and cladding.<ref name=Appalachian>{{cite web |url=http://www.appalachianwood.org/utilization.htm |title=Wood utilization |publisher=Appalachian Hardwood Manufacturers |access-date=27 July 2012 |archive-date=28 July 2012 |archive-url=https://web.archive.org/web/20120728010824/http://www.appalachianwood.org/utilization.htm |url-status=live }}</ref>

[[File:Claude Monet, Weeping Willow.JPG|thumb|upright|Trees in art: ''[[Weeping Willow (painting)|Weeping Willow]]'', [[Claude Monet]], 1918]]

Wood is used to construct carts, farm implements, boats, dugout canoes and in shipbuilding. It is used for making furniture, tool handles, boxes, ladders, musical instruments, bows, weapons, matches, clothes pegs, brooms, shoes, baskets, turnery, carving, toys, pencils, rollers, cogs, wooden screws, barrels, coffins, skittles, veneers, artificial limbs, oars, skis, wooden spoons, sports equipment and wooden balls.<ref name=Appalachian/>

Wood is pulped for paper and used in the manufacture of cardboard and made into engineered wood products for use in construction such as [[Medium-density fibreboard|fibreboard]], [[hardboard]], [[Particle board|chipboard]] and [[plywood]].<ref name=Appalachian/> The wood of conifers is known as [[softwood]] while that of broad-leaved trees is [[hardwood]].<ref>{{cite web |url=http://www.dnr.state.md.us/forests/gloss.html |archive-url=https://web.archive.org/web/20120712173543/http://www.dnr.state.md.us/forests/gloss.html |archive-date=12 July 2012 |title=Glossary of Forestry Terms |last=Pywell |first=Nancy |date=7 October 2003 |access-date=30 July 2012 |url-status=dead }}</ref>