Stock forms - wood Flashcards
(32 cards)
what is Rough sawn wood?
wood that hasnt been sanded
what is PSE wood?
Planed square edge is when the top and bottom are rough but the sides are sanded
what is PAR wood?
planed all around is when all sides are fully sanded
Rough sawn wood properties
- cheap
- good for house structures
- rough
planed wood properties
- more expensive
- better quality
- sanded/finished all round
what is a planer and what does it do?
- It reduces the thickness of the wood
- Cuts wood for a 90 degree angle
what are moldings? with an example
Wood that has been cut with designs or ridges for skirting boards
how big is a full manufactured board?
1220x2440mm
Soft wood properties and examples
-Fast growing
- low cost
-long and straight
[pine, Douglas fir, cedar, spruce, redwood and larch]
Characteristics of Pine [+a use]
- lightweight
- strong
- easy to machine
- cheap
- needs treating
- furniture
Characteristics of Spruce [+a use]
- easy to work with
- uniform texture
- flexible
- strong
- lightweight
- open cell structure
- old planes
Characteristics of Redwood [+a use]
- grow 3m a year
- lightweight
- soft
- good strength to weight ratio
- good for decking and musical instruments
Characteristics of Cedar [+a use]
- high oil content
- resistant to decay
- toxic
- used for boats
Characteristics of Larch [+a use]
- hard timber
- high resin content
- used for veneer
Characteristics of Douglas Fir
- tough wood
- cheap
- strong
- high density
- high resin content
Characteristics of Oak + one use
- tough
- durable
- rot resistant when exposed to moisture
- contains tannic acid which corrodes steel
- good for engineering [ship building and architechture
Characteristics of Ash [+ 1 use]
- springy
- large open pores [elastic properties]
- shock resistant
- bendy wood
- used for sports equipment
Characteristics of Mahogany + what its used for?
- stable
- good workability
- nice grain
- long and wide
- defect free
- good for veneers
Characteristics of Teak + one use
- high oil content
- good for outdoors
- durable
- toxic
- high resistance to acids and alkalis
- outdoor furniture
Characteristics of Birch
- fine grain
- least insect and rot resistant
- even structure
- low cost
- easy to work with
- noticeable defects
what wood is illegally logged in Brazil?
Mahogany
what woods are hard woods?
oak, ash, mahogany, teak , birch , beech
Characteristics of beech + one use
- hard
- tough
- odorless
- close and straight grain
- easy to work with
- flexible
- good for steam bending
- used for food bowls
Characteristics of Plywood
- made from low grade hard and soft wood
- strong in every direction
- cant split along the grain
- uniform
- can contain knots
