Yew
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Pippy Yew
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Yew Burr
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The following information is posted with permission of
Timber Research and Development Association (TRADA)
and is taken from their red booklets Timbers of the World. © TRADA
Taxus baccata
L Family
: Taxaceae
Other names
common Yew, European yew.
Distribution
Yew has a very wide distribution in Europe, North Africa, Asia Minor, the
Himalayas and Burma. It extends in Europe from Scandinavia to the Mediterranean,
and from the Atlantic to the western provinces of Russia, and is found in
Algeria and northern Iran.
The tree
Although a large tree it is by no means tall, growing to a height of 12m to
15m but with a short bole which is never cylindrical because of its
characteristic form of growth. The tree is continually pushing out new shoots
from the lower part of the bole; these grow upwards and coalesce with the old
wood, thus producing a fluted appearance to the bole, or as a series of fused
stems.
The timber
The sapwood is very narrow and white in colour, sharply demarcated from the
heartwood which varies in colour from orange-brown to dark purplish-brown, the
lighter-coloured wood often containing darker streaks. Although the natural
growth tendency is to produce narrow growth rings, which account for the hard,
compact, and elastic nature of yew wood. the irregular growth pattern results in
widely varying ring widths, even in the same ring, and this, combined with the
narrow zone widths of dense late-wood, often produces a valuable decorative
appearance in the wood. It is a hard, relatively heavy softwood. weighing about
670 kg/rn3 when dried.
Drying
The timber dries fairly rapidly and well, with little degrade, but care is
needed initially to avoid shakes developing. Where these occur in air drying,
they usually tend to extend in further drying.
Strength
A tough, resilient wood, equal to oak in hardness and in compressive
strength along the grain, but rather inferior to oak in resistance to splitting.
Durability
Durable.
Working qualities
A moderately difficult to difficult timber to work and machine depending
greatly on the type of grain present; when this is straight the wood can be
machined and finished to a good surface, but irregular and cross-grain can tear
out in planing and moulding, and a reduced cutting angle is recommended,
generally to about 15o. The wood is inclined to be oily. which
sometimes interferes with good gluing, and care is therefore needed. It takes
stains satisfactorily, and a high polish. It is a good turnery wood.
Uses
Decorative work restricted only in scope by the size of available timber,
chairs, doors, tables, veneer, sometimes from burrs that occasionally form. It
is also used for posts because of its durability.
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