1.2 Woods Flashcards
(52 cards)
What are hardwoods
Slow growing deciduous
What are softwoods
Fast growing evergreen
What should work be done along with woods
the grain
What biopol supports woods cell walls
lignin resin
Why are trees felled in the winter
As they have less growth, less sap therefore less water
What (explain) the 2 types of wood conversion
plain sawn - cut into boards, quarter sawn - the log is cut into quarters then cut into boards
What is wood seasoning
Removing excess water(80-90%) to match the environment
What are the 4 adv of seasoning timber
decay immunity, greater strength, helps preservatives penetrate, less corrosive to metals
What are the 2 types of wood seasoning
air and kiln seasoning
What are the adv of air seasoning
cheap
What are the disadv of air seasoning
slow only meets outdoor conditions
What are the adv of kiln seasoning
quick and good for outdoor products
What are the disadv of kiln seasoning
expensive
What are the 7 wood types
Oak, beech, ash, mahogany, pine, teak, cedar
What is the most prevalent wood shrinkage direction
tangentially
What is shrinkage of wood
The expanding and contracting of wood causes warping and cracking, mainly during seasoning
What is a use of oak
exterior posts
What is a use of ash
tool handles and chair legs
What is a use of beech
wooden mallets
What is a use of teak
outdoor furniture
What is a use of mahogany
indoor furniture
What are the properties of ash
flexible and tough
What is a use of pine
interior timber framing
What is a use of cedar
cladding
