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4.2b Timber

4.2b Timber

Natural  timber  is  timber  that  is  used  directly  from  the  tree  after  being  seasoned  (a  controlled drying process). It is actually a type of composite material because it is made up of cellulose (wood fibres) held together with a natural adhesive (lignin)....
4.2b Timber

4.2b Timber

Softwoods  come  from  coniferous  trees  which  are  evergreen,  needle-leaved,  cone-bearing trees, such as cedar, fir and pine. Softwoods can often be harder than hardwood. Douglas Fir has a higher tensile and compressive  strength  than  many  hardwoods.  Balsa ...