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woods - Coggle Diagram
woods
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wood joins
dovetail, hard to make , strong and durable
finger joints , slot together well, strong but weaker than dovetail
butt joint , easy to make, weak, breaks easily
mitre joint, same as butt joint, weak, hides end of wood grains
hardwoods
balsa
soft, light, good for making models
beech
tough , durable , close grain, smooth finish
oak
strong hard durable, attractive grain, polishes well
softwoods - grow faster and can be easily forested, less expensive, low density
pine
aesthetically pleasing grain, lightweight, easy to form
spruce
even grain, easy to form, takes stain well
larch
knotty, durable, easy to machine, high sap content so good water resistance
manufactured boards
mdf
smooth light brown and can be veneered, absorbs moisture, easy to finish
chipboard
compacted wood chips, can be laminated, strong but absorbs water
plywood
thin layers of wood glued together at 90 degrees to eac hother, easy to cut and finish
wood drying - it can be dried naturally over time which takes over a year but it kiln dried in a day, this reduces moisture contents of the wood