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Woods - Coggle Diagram
Woods
Manufactured wood
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chipboard: man- made sheet material made from small chips of timber glued together to produce a dense sheet
MDF: small timber fibres mixed with wax and resin and are heated and compressed to make a flat usable sheet
plywood: gluing 3+ layers at right angles to each other (laminating)- considered to be a strong board because of the alternating grain
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Manufactured boards are usually made from timber waste and adhesive. To make them more aesthetically pleasing they are often veneered. They are cheap to buy.
Aesthetics
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MDF is often laminated with a single sheet of hardwood veneer to give a hardwood impression with less cost
eg. staining, varnishing, oiling, waxing, painting and lamination
Environmental factors
when a tree is chopped down for timber, there is a cost to the environment. Trees are vital for our survival as they absorb carbon dioxide (CO2).
although more than one tree can be planted for each tree that is chopped down, older trees often absorb more carbon dioxide and provide more of a habitat for wildlife due to their size.
the availability of a material is an important consideration too. Some softwoods are readily available due to the fast-growing nature of the tree. Hardwood, on the other hand, grows considerably slower and is therefore much more expensive.
Material costs
Material costs are an important factor when selecting material. It is often possible that more than one material is suitable for a job, and it may be the cost that determines which one is used.
Manufactured boards vary in price depending on where they are bought and how many are bought at once. Some timber is sold at a price calculated by volume.
Hard wood
properties
Hardwoods come from deciduous trees, which take longer to grow, are not easily sourced and are expensive to buy
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Soft wood
properties
Softwoods come from coniferous trees- they do not lose leaves in the autumn. They are faster growing than hardwoods, making them cheaper to buy, and are considered a sustainable material.
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