Softwood
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Softwood
Scots Pine, a typical and well-known softwood

Softwood is wood from gymnosperm trees such as conifers. The term is opposed to hardwood, which is the wood from angiosperm trees. Softwood trees have needles and exposed seeds, but do not have leaves.

Characteristics

Softwoods are not necessarily softer than hardwoods.[1] In both groups there is an enormous variation in actual wood hardness, with the range in density in hardwoods completely including that of softwoods; some hardwoods (e.g. balsa) are softer than most softwoods, while the hardest hardwoods are much harder than any softwood. The woods of longleaf pine, douglas fir, and yew are much harder in the mechanical sense than several hardwoods.

Softwoods are generally most used by the construction industry and are also used to produce paper pulp, and card products.[2]

Certain species of softwood are more resistant to insect attack from woodworm, as certain insects prefer damp hardwood.

Known softwood trees and uses

Applications

Softwood is the source of about 80% of the world's production of timber,[5] with traditional centres of production being the Baltic region (including Scandinavia and Russia), North America and China. Softwood is typically used in construction as structural carcassing timber, as well as finishing timber.

See also

References

  1. ^ Buckley, Michael (2005). "A basic guide to softwoods and hardwoods" (PDF). worldhardwoods.com. Retrieved 2017. 
  2. ^ Ryan, V. (2012). "REVISION CARDS - SOFTWOODS". technologystudent.com. Retrieved 2017. 
  3. ^ "Things we make from softwood trees". forestry.gov.uk. 11 July 2017. Retrieved 2017. 
  4. ^ Harding, T. (1988). "British Softwoods:Properties and Uses" (PDF). forestry.gov.uk. Retrieved 2017. 
  5. ^ United Nations Forest Products Annual Market Review 2007-2008, p. 46, at Google Books

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.


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