Wood

Question 1

Oak

Answer 1

Hard, tough, attractive grain and good weather resistance. Contains tannic acid which corrodes steel screws

Used in furniture,flooring,boats…

Question 2

Ash

Answer 2

Tough, attractive grain, flexible

Used in tool handles ladders, sports goods and laminating

Question 3

Mahogany

Answer 3

Interlocking grain -> difficult to work with and red

Used in indoor furniture and veneer

Question 4

Teak

Answer 4

Straight grain and natural oils resist moisture,acids and alkalis

Used in outdoor furniture and traditional boat decks

Question 5

Birch

Answer 5

Close grain, resists warping

used for furniture and indoor panelling

Question 6

Beech

Answer 6

when steamed white when not, pink. Does not impart a taste onto food

used in chairs, chopping boards, tools

Question 7

Pine

Answer 7

Straight grain, knotty, can contain resinous knots

Used in contruction work

Question 8

Spruce

Answer 8

Straight grain, resistant to splitting

Used in indoor furniture

Question 9

Larch

Answer 9

Grain fades to silver when exposed to the outside, good resistance to moisture

Used in outdoor furniture, fencing, decking

Question 10

Cedar

Answer 10

corrodes ferrous metals, low density, sound dampening

greenhouses, beehives

Question 11

Plywood

Answer 11

Thin layers of wood placed perpendicular to each other, strong in all directions, no grain weakness, an odd number of layers

Used in structural work, desktops, floorboards

Question 12

Marine Plywood

Answer 12

Uses a water and boil proof glue and can be reistant to fungal attack

used in boats

Question 13

Aeroply

Answer 13

High-quality plywood made from timber such as birch. Available in thin sheets, lightweight and easy to bend around a support frame.

Used in Gliders, laminated furniture, laser cut projects and jewellery

Question 14

Flexiply

Answer 14

Plywood with two outer layers made from open grain timber allowing it to flex

Used in laminated furniture and curved panels

Question 15

MDF

Answer 15

Compressed wood fibres sometimes urea formaldehyde is added as an additional resin. Available in standard grain or veneered with a layer of timber.

Used in model making, bookcases, cabinets and desks

Question 16

Rough Sawn

Answer 16

When wood is cut to a basic size on a circular saw. The edges and sides are not smooth. This is usually the first stage of preparing wood for further, more accurate work. Rough sawn timber is cheaper. Rough sawn wood is often used on building sites, where the wood surface finish is not critical or not likely to be seen. A company/business that has a machine planer may buy rough sawn boards and plane them to size themselves, saving money. Standard stock sizes are 32mm and 50mm.

Question 17

Planed square edge

Answer 17

wood that only has one edge that is planed accurately and the rest are rough sawn. Planing removes 3mm from original nominal size.

Question 18

Planed all round

Answer 18

Wood has sides and edges that are all planed sqaure. The board is about 3mm small all round.

Question 19

Natural wood

Answer 19

Only available to th emaximum width of the tree. To produce a wide product, wood planks need to be joined together. when joining planks, the end grains must go in opposite directions to ensure internal forces to not warp the wood to one side.

Question 20

Manufactured Boards

Answer 20

Available in long, wide boards of uniform thickness. Not affected as much by temperature and humidity. No grain problems. Less expensive. Typical sheet size is 1220mm x 2440mm