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Kauri is a superb timber for building the hulls and decks of boats. It too is now a specialty timber and ancient logs (in excess of 3 000 years) that have been mined from swamps are used by wood turners and furniture makers. The natural durability or rot and insect resistance of wood species is always based on the heartwood (or "truewood").
Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.
Timber-pile bridge with steel stringers, New Jersey. Timber pilings serve as the foundations of many historic structures such as canneries, wharves, and shore buildings. The old pilings present challenging problems during restoration as they age and are destroyed by organisms and decay. Replacing the foundation entirely is possible but expensive.
FSC Lesser Known Timber Species; NCSU Inside Wood project; Reproduction of The American Woods: exhibited by actual specimens and with copious explanatory text by Romeyn B. Hough; US Forest Products Laboratory, "Characteristics and Availability of Commercially Important Wood" from the Wood Handbook Archived 2021-01-18 at the Wayback Machine PDF 916K
Shakes may reduce the strength of a timber and the appearance thus reduce lumber grade and may capture moisture, promoting decay. Eastern hemlock is known for having ring shake. [32] A "check" is a crack on the surface of the wood caused by the outside of a timber shrinking as it seasons. Checks may extend to the pith and follow the grain. Like ...
Large self-supporting wooden roof built for Expo 2000 in Hanover, Germany. Engineered wood, also called mass timber, composite wood, man-made wood, or manufactured board, includes a range of derivative wood products which are manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of wood, together with adhesives, or other methods of fixation [1] to form ...
Cross-laminated timber (CLT) is an engineered wood product that is gaining popularity in the construction industry due to its numerous advantages, such as sustainability, cost-effectiveness, and ease of construction. Mechanical properties, particularly compressive strength, are key factors to consider when designing and constructing CLT panels.
The timber of living trees and fresh logs contains a large amount of water which often constitutes over 50% of the wood's weight. Water has a significant influence on wood. Wood continually exchanges moisture or water with its surroundings, although the rate of exchange is strongly affected by the degree to which wood is sealed.