Timber Flashcards
Where do hardwoods come from?
Deciduous trees
List Examples of Hardwoods
Common ones include - Ash, Beech, Mahogany, Oak, Balsa
Properties of Hardwoods
Hard, Durable, Strong, Expensive
1 uses of Hardwoods and 2 qualities
- used for toys as its durable
- Easy to paint
- Wont splinter because its durable
What trees do softwoods come from?
Coniferous trees
Types of softwoods
Larch, pine, Spruce
Cost of Softwoods
Inexpensive compared to hardwoods
Qualities of softwoods
- quick growing, 10 years before felling
- extremely sustainable asit is renewable
- used mainly for indoor product and joinery as most have poor resistance to decay
- requires added preservatives for outdoor use
- most are less dense than hardwoods
Examples of Manufactured Boards
MDF, Plywood, Chipboard
Cost of Manufactured boards
No grains, cheaper 5han natural timber and omes in large sheets
Qualities of Manufactured Boards
- Commonly used in flat pack furniture.
● Cheaper than natural wood.
● Finished using veneers to achieve different
looks.
● No grain, so easy to work with.
● Prone to moisture damage.
● Often used from waste or recycled materials.
How do trees go from trees to timber?
From conversion and seasoning
What is conversion?
After being cut (felled), tree trunks are stripped of their bark and cut into usable planks in a sawmill, where they become timber.
Planks come in many shapes and sizes.
What is seasoning?
Newly cut (green) timber contains a lot of moisture, which makes it liable to rot, split and warp. To counteract this, the moisture is removed through seasoning.
2 types of seasoning
Air seasoning
Kiln seasoning
How does conversion affect the timber?
A planks cut can affect its risk of warping and twisting as well as its cost
How does the cut of a stockform affect its cost?
Depending on how complex the cut is, the costlier the timber is
Types of timber cuts
- Baulk
- Through and Through Cut
- Tangential Cut
- Quater Cut
