Natural and manufactured timbers
Types of timbers and their uses
Timber comes from trees. Trees have to grow to full maturity (between 25 and 100 years) before they can be cut down for wood.
Hardwood
Timber that has come from a tree that drops leaves in the autumn to prepare for winter. come from Trees that lose their leaves during autumn to prepare for winter. trees, which have large flat leaves that fall in the autumn. Hardwoods take longer to grow, are not easily sourced and are expensive to buy.
| Hardwood | Physical properties | Working properties |
| Birch | Creamy white or yellow colour | Well worked by machines, can be steam bent and is resistant to preservatives, used in joinery and plywood |
| Beech | Slight pink tint, close grain | Tough, durable and smooth to finish, used on high-quality furniture |
| Teak | Coarse uneven texture with oily feel, usually straight grained | Produces own natural oils, can be cut well and glues well, used on outdoor furniture and boats |
| Oak | Moderate-brown colour with unique and attractive grain markings | Tough and durable, polishes well, used for quality furniture |
| Balsa | Pale and wide-spaced grain due to it being a fast-growing hardwood | Very soft and easy to form, often used to make models |
| Hardwood | Birch |
|---|---|
| Physical properties | Creamy white or yellow colour |
| Working properties | Well worked by machines, can be steam bent and is resistant to preservatives, used in joinery and plywood |
| Hardwood | Beech |
|---|---|
| Physical properties | Slight pink tint, close grain |
| Working properties | Tough, durable and smooth to finish, used on high-quality furniture |
| Hardwood | Teak |
|---|---|
| Physical properties | Coarse uneven texture with oily feel, usually straight grained |
| Working properties | Produces own natural oils, can be cut well and glues well, used on outdoor furniture and boats |
| Hardwood | Oak |
|---|---|
| Physical properties | Moderate-brown colour with unique and attractive grain markings |
| Working properties | Tough and durable, polishes well, used for quality furniture |
| Hardwood | Balsa |
|---|---|
| Physical properties | Pale and wide-spaced grain due to it being a fast-growing hardwood |
| Working properties | Very soft and easy to form, often used to make models |
Softwood
Timber that has come from a coniferous tree that does not drop leaves in the autumn to prepare for winter. come from Trees that do not lose their leaves during autumn to prepare for winter. trees. These often have pines or needles, and they stay evergreen all year round - they do not lose leaves in the autumn. They are faster growing than hardwoods, making them cheaper to buy, and are considered a A sustainable resource can be replaced once used. As a tree is chopped down, many more can be planted to ensure the use of trees can be sustained. material.
| Softwood | Physical properties | Working properties |
| Cedar | Reddish brown in colour, straight grain and coarse texture | Easily worked with tools and machines, glues and finishes well, used in joinery and cladding |
| Pine | Pale coloured with aesthetically pleasing grain | Lightweight, easy to form, used for construction and decking |
| Spruce | Pale cream with an even grain | Easy to form, takes stain colour well, used for construction and furniture |
| Softwood | Cedar |
|---|---|
| Physical properties | Reddish brown in colour, straight grain and coarse texture |
| Working properties | Easily worked with tools and machines, glues and finishes well, used in joinery and cladding |
| Softwood | Pine |
|---|---|
| Physical properties | Pale coloured with aesthetically pleasing grain |
| Working properties | Lightweight, easy to form, used for construction and decking |
| Softwood | Spruce |
|---|---|
| Physical properties | Pale cream with an even grain |
| Working properties | Easy to form, takes stain colour well, used for construction and furniture |
Manufactured board
Manufactured boards are usually made from timber waste and A substance which bonds the surfaces of materials together.. To make them more aesthetically pleasing they are often A thin decorative covering of fine wood applied to a coarser wood or other material.. They are cheap to buy.
| Manufactured board | Physical properties | Working properties |
| Medium-density fibreboard (MDF) | Smooth, light brown, can be veneered | Smooth and easy to finish, absorbs moisture so not suitable for outdoor use, used for kitchens and flat pack furniture |
| Plywood | Odd number of layers of veneer glued at 90 degree angles for strength, aesthetically pleasing outer layer | Easy to cut and finish, can be stained or painted, used for shelving, construction and toys |
| Chipboard | Compacted wood chips, laminated with a variety of coverings, end cuts are difficult to finish | Strong but absorbent to water, used for veneered worktops and flooring |
| Blockboard | Blocks of wood that are ‘sandwiched’ between two thin outer layers of wood | Strong and durable, not used outside but instead for interior use on shelves, doors and panelling |
| Manufactured board | Medium-density fibreboard (MDF) |
|---|---|
| Physical properties | Smooth, light brown, can be veneered |
| Working properties | Smooth and easy to finish, absorbs moisture so not suitable for outdoor use, used for kitchens and flat pack furniture |
| Manufactured board | Plywood |
|---|---|
| Physical properties | Odd number of layers of veneer glued at 90 degree angles for strength, aesthetically pleasing outer layer |
| Working properties | Easy to cut and finish, can be stained or painted, used for shelving, construction and toys |
| Manufactured board | Chipboard |
|---|---|
| Physical properties | Compacted wood chips, laminated with a variety of coverings, end cuts are difficult to finish |
| Working properties | Strong but absorbent to water, used for veneered worktops and flooring |
| Manufactured board | Blockboard |
|---|---|
| Physical properties | Blocks of wood that are ‘sandwiched’ between two thin outer layers of wood |
| Working properties | Strong and durable, not used outside but instead for interior use on shelves, doors and panelling |
Image caption, The construction of plywood
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