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Teak / Jati /
Tectona Grandis
Tectona Grandis
is the Latin name for
Teak, and Jati is the Indonesian
name for Teak where the lumber come from.
Teak is a hardwood of the family Verbenaceae
Characteristics of the teak tree and its
location
Tectona Grandis is said to be indigenous to India,
Burma, Thailand, Indochina and Java Indonesia. It has been
extensively planted for timber or as an ornamental
within its natural range and throughout the
tropical regions of the world, including East and
West Africa, as well as Cuba and the Caribbean,
and South America from Panama to Brazil.
Tectona Grandis, is not a timber from tropical
rain forests, and indeed, teak cannot grow in rain
forests - it is a deciduous tree which grows
particularly well in the dry, hilly terrain
typical of plantation forests in Southeast Asia.
Specifically in Java Indonesia, Perum Perhutani is
the government agency which is responsible for
managing Indonesia's extensive forests and
plantations. Java has very large Teak plantations
which were first planted by the Dutch in the early
1800's. These plantations are now well managed by
Perum Perhutani.
Perum Perhutani operate a strict policy regulating
the number and size of trees which can be felled,
as well as with regard to the numbers of trees
which are replanted to maintain the productivity
of the teak forests for future generations. The
teak plantations produce a high value crop that is
a very valuable source of income in their local
area. And the associated furniture and timber
products industry provides regular local
employment to many thousands of people.
When plantation grown the tree will attain a
height of up to 45m [150ft] with a dia. 1 - 1.5m
[3 - 5ft]. It will be ready for harvesting at
around 50 - 60 years. If well maintained the tree
can produce a clear stem of up to 30m in length
giving a high timber yield. It produces a very
large leaf similar to a tobacco leaf which is
around 12" long and wide.
Characteristics of teak wood
Teak is an extremely dense [40lbs cu ft when dry]
coarse grained hardwood.
Teak wood is generally straight grained, but
occasionally wavy. It has a coarse and uneven
texture. The wood contains a high level of silica
which causes rapid blunting of cutting edges. When
fresh cut the surface of the wood is dull in
appearance, and the timber has a distinctive,
pleasantly aromatic odor which has been likened to
the smell of leather. Fresh sawn teak has a
slightly 'oily' feel due to the high oil content.
One of the most commonly quoted facts about the
characteristics of teak is its durability. It is
resistant to rot caused by fungal decay, and the
high level of resinous oil present in the timber
helps to act as a natural insect repellent giving
the timber very high resistance to attack by
termites and other wood boring insects.
The timber is said to be resistant to water and
many chemical reagents, including acids. It does
not have a strong reaction when it comes in
contact with metals.
All these statements regarding the durability of
teak are born out by the fact that we can see many
instances of the timber which have withstood the
test of time when used as key components in the
boat building industry, or more sedately when used
for making municipal furniture for our parks.
All our Teak Furniture is manufactured from
genuine Teak.
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