Theory - Woods Flashcards
What is a laminated board
Wood layered on top each other
Timber is a……material
Natural
Hardwoods come from……….trees
Deciduous trees
Loose their leaves in winter
Give some properties of deciduous trees
Broad leaves
Slower growing than soft wood
Generally more expensive than softwood
Good resistance to decay
Give 5 hardwoods
Ash Beech Mahogany Oak Balsa
What is Ash used for and why
Sports equipment and ladders
Tough and flexible
Finishes well
What is Beech used for and why
Furniture
Children toys
Worship handles
Hard and strong
Prone to splintering
What is Mahogany used for and why
Good quality furniture
Veneers
Strong and durable
Available in wide planks
What is Oak used for and why
Timber framed buildings
High quality furniture
Flooring
Hard, tough and durable
Can be finished to a high standard
What is Balsa used for and why
Model making
Floats and rafts
Strong and durable
Lightweight
Easy to work with
What trees do softwoods come from
Coniferous trees
What are the properties of coniferous trees
Evergreens Needless rather than leaves Quick growing Generally less expensive than hardwoods Poor resistance to decay Less dense than hardwoods Very sustainable and renewable
How many years does it take for a pine tree to grow
30 years
Give 3 softwoods
Pine
Spruce
Larch
What is Pine used for and why
Furniture and window frames
Light yellow in colour
Soft and easy to work
Cn be quite knotty though
What is Spruce used for and why
Bedroom furniture
Stringed musical instruments.
Creamy white in colour
Easy to work
Small knots
Lightweight with resistant properties
What is Larch used for and why
Fencing
Cladding
Decking
Relish in colour
Tough but easy to work
Naturally resistant to rot
Manufactured boards were developed as an alternative to…………….
Natural timbers
Did manufactured boards prove to be popular
Yes!
Son popular that in many applications they have almost completely replaces the use of natural timber
In what areas are manufactures boards extensibly used
Kitchen manufacturing and self-assembly furniture.
What are compressed boards
Particles, chips or flakes of wood are glued together under pressure.
What are laminated boards
Several layers of wood glues together
Give some advantages of manufactured boards
Popular and versatile
Can be wider than a tree
Less expensive
50/50 renewable as glue makes it hard to recycle
Can put a veneer on cheap wood to make it look expensive
Less likely to twist, wrap or split
Give 6 manufactured woods
Plywood Block board Chipboard MDF Hardboard Sterling board
What is Plywood used for and how is it formed
Cheap quality furniture and simple joining
Softwood plywood tends to be used in the construction industry of roofs, walls and floors.
A composite material
Composed of individual piles of wood.The piles are glued together with synthetic resin.
What is Block board used for and how is it formed
Building material and furniture manufacture including fitted kitchens and bedrooms
A type of plywood but up with softwood strips bonded together with adhesives and covered with a sheet of plywood either side.
What is Chipboard used for and how is it formed
Used in cheap furniture
Made by small chips of wood bonded together with resin and formed into sheets by compression
What is Hardboard used for and how is it formed
Covering curved structures and door panels
A very cheap particle board which sometimes has a laminated plastic surface.
What is Hardboard used for and how is it formed
Covering curved structures and door panels
A very cheap particle board which sometimes has a laminated plastic surface.
What is Sterling board used for and how is it formed
Protect windows of empty buildings or to make e products that need to be protected against the elements,.
(Fishing, boxes and shed flooring).
Softwood strands compressed and glued together withe exterior grade, water resistant resin.
What does MDF stand for
Medium Density Fire-board
