Timbers Flashcards
What trees do hardwoods come from?
Deciduous trees
How long do hardwood trees take to grow?
60+ years
Where do the majority of hardwoods grow?
n tropical regions, such as Amazonian climates, while others grow in temperate climates such as Europe.
Why is the grain of hardwoods very close?
Because the growth rings are much smaller than softwoods
What are examples of hardwoods?
Beech, mahogany, oak, balsa, jelutong, birch and ash
What are the physical properties of beech?
Beech has a slight pink tint and a close grain
What are the working properties of beech?
Beech is tough, durable and is smooth to finish
What does mahogany look like
Mahogany has a dark-reddish colour and a very close grain
What are the working properties of mahogany?
durable, cuts and polishes easily, gives a fine finish, used for high-quality furniture
What are the physical properties of oak?
Oak is a moderate-brown colour with unique and attractive grain markings
What are the working properties of oak?
Oak is tough and durable, it polishes well, and is used for quality furniture
What does balsa look like
Pale and wide-spaced grain
What are the working properties of balsa?
Balsa is lightweight, very soft and easy to form, often used to make models
What is jelutong used for?
Model making and vacuum forming moulds
What is the grain of jelutong like?
Close and even
What are the working properties of jelutong?
easy to cut and shape, soft
Why is jelutong not used for structural uses?
Because it is so soft
What is birch used for?
Veneers in furniture
Why is birch selected?
Because of its even grain
Is birch easy to cut and shape?
Yes
Birch is unfortunately liable to…
rot and insect attacks
What is ash used for?
ladders, tool handles, walking sticks and sports equipment
What are the working properties of ash?
Strong, flexible, finishes well
Like birch, ash is liable to…
rot and insect attacks