Timber and Boards

What are the two main categories of Timbers?

• Natural and Produced
• Natural and Manufactured
• Natural and Man produced
• Natural and Manufaktured

What does MDF stand for?

• Medium Dense Fibres
• Medium Dense Fibreboard
• Medium Density Fibres
• Medium Density Fibreboard

A ply is ...

• specifically a thin piece of timber
• a thin layer of paper
• used for toilet paper
• thin layer of material

MDF is used because it ...

• environmentally friendly, cheap and rough
• sustainable, hard to cut, good for moulds
• is cheap, smooth, easy to machine
• expensive, resistant to water, good for finishing

What is the difference between the grain of Softwoods and Hardwoods?

• Softwoods have straight, hard to see grain.
• Softwoods have very visible grain and often have knots.
• Hardwoods have easy to see grain and growth rings
• Hardwoods have knots

Hardwoods are usually trees that are called ...

• Deciduous
• Evergreen

Mahogany shouldn't be used because ...

• It causes skin irritations
• It is linked to cancer
• It takes a long time to grow
• It is rare and is often logged illegally

Softwoods come from what types of tree?

• Coniferous trees with needle like leaves

• Deciduous with broad leaves

Which trees grow more rapidly?

• Hardwoods

• Softwoods

Softwoods grow in what geographical regions?

• Subtropical

• Temperate