Deciduous (leaf losing) trees, slower growing, expensive, aesthetically pleasing grain patterns, denser, greater strength and hardness than softwoods
Hardwoods
Oak
Mahogany
Beech
Ash
Ash
Tough, flexible, good elasticity
Ash
Flexible
Can become a bit splintered
Softwood
Coniferous (cone-bearing, evergreen) trees, reach maturity in about 30 years, cheaper than hardwoods, more sustainable than hardwoods, resinous, various in colour, less dense than hardwoods, prone to water damage
Softwood
Pine
Pine
Lightweight
Pine
Nice colour and grain pattern, grows relatively quickly in comparison to hardwoods
Prone to warping, knots can fall out and leave holes
Man-made wood
Waste wood is used to make MDF and chipboard, plywood is made from layers of veneers glued together, all are made in a factory, used in mass produced furniture
Man-made wood
Available in large flat sheets, doesn't warp as much as natural timber, can be decorated in many ways, can be flexible, waste wood used in making MDF, chipboard and hardboard
Need sharp tools to cut and tools are easily blunted, thin sheets do not stay flat unless supported, difficult to cut traditional joints, can generate harmful dust particles, edges need to be treated to hide unsightly parts and also to stop water getting in
Plywood
Very strong in all directions, resistant to splitting because layers are in alternate directions
Plywood
Available in large sheets, thicker sheets will not warp or twist, thin sections can be laminated to create 2D shapes
Thin sheets very flexible and will warp if not correctly stacked or supported
Plywood is made of layers (veneers) normally 1.5mm thick, the grain of each layer is at rightangles to the layer either side of it, and there is an odd number so the outside layers run in the same direction, Birch veneers used on the outside layers resulting in attractive surface
Chipboard
Made from waste products bonded together using very strong resins, strong in all directions although not as strong as plywood, not very resistant to water but moisture resistant grades available
Chipboard
Makes good use of waste materials that are chipped up
Not very good around water because it will soak it up, will chip and flake on edges if not protected
Chipboard has no grain patterns, surface often veneered or covered with a plastic laminate
Medium Density Fibreboard (MDF)
Very dense, stable and not affected by changing humidity levels, will break down and absorb water if it gets very wet
Medium Density Fibreboard (MDF)
Thin sheets can be formed to make 2D shapes
Not very good with water because it will soak it up at the edges
Medium Density Fibreboard (MDF) has an excellent surface finish which can be veneered or painted
Hardboard
Made from compressed fibres that have been soaked in resin before being compressed
Hardboard has a very smooth side and a textured underside