Knots do not necessarily influence the stiffness of structural timber, this will depend on the size and location. Stiffness and elastic strength are more dependent upon the sound wood than upon localized defects.
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Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper.It is a long established fact that a reader.
some decorative applications, wood with knots may be desirable to add visual interest. In applications where wood is painted, such as skirting boards, fascia boards, door frames and furniture, resins present in the timber
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