Weight of various types of wood Density of Wood.

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The mass of over 30 different species of wood are listed below. While the data is useful for the design and selection of wood, individual samples will differ. Moisture content will have a marked influence.
As 1000kg of pure water = 1 cubic metre, those materials under 1000kg/cubic metre will float; more dense will sink ie. those materials with a specific gravity more than 1.
Pure water was chosen as the 'base line' for specific gravity and given the value of 1. The specific gravity of all other materials are compared to water as a fraction heavier or lighter density. For example,
afromosia has a specific gravity (sg) of 0.705 while ebony can have a sg of 1.12 (1120 kg/cu.m) (see table below)
As specific gravity is just a comparison, it can be applied across any units. The density of pure water is also 62.4 lbs/cu.ft (pounds per cubic foot) and if we know that a sample of apple has a sg of 0.73 then we can calculate that its density is 0.73 x 62.4 = 45.552 lbs/cu.ft.
Note, kg/cu.m divided by 16.01846 = lbs/cu.ft
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 Wood - seasoned & dry kg/cu.m Afromosia 705 Apple 660 - 830 Ash, black 540 Ash, white 670 Aspen 420 Balsa 170 Bamboo 300 - 400 Birch (British) 670 Cedar, red 380 Cypress 510 Douglas Fir 530 Ebony 960 - 1120 Elm ( English ) 600 Elm ( Wych ) 690 Elm ( Rock ) 815 Iroko 655 Larch 590 Lignum Vitae 1280 - 1370 Mahogany ( Honduras ) 545 Mahogany ( African ) 495 - 850 Maple 755 Oak 590 - 930 Pine ( Oregon ) 530 Pine ( Parana ) 560 Pine ( Canadian ) 350 - 560 Pine ( Red ) 370 - 660 Redwood ( American ) 450 Redwood ( European ) 510 Spruce ( Canadian ) 450 Spruce ( Sitka ) 450 Sycamore 590 Teak 630 - 720 Willow 420

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 We have tried to be accurate with the above table but cannot be held responsible for inaccuracies. Go back to first principals and double check your calculations if the result is 'mission critical'. Remember that you cannot create energy only convert it. Likewise, you will not find a conversion from pounds to metres - the basic units must remain the same - mass converted to mass, length converted to length, et al. You won't usually find a conversion from kilograms to grams - the prefix 'kilo' means '1,000' so a kilogram is in fact 1,000 grams in the same way as a kilometer is 1,000 metres [or about 1,000 yards in 'old money']. I have put a few in the tables because visitors have asked for them. More prefixes can be found on another table. One handy metric link between units to remember is that 1 Litre [1000cc] of pure water weighs 1 kilogram. If accuracy is critical beware of old versions of MS Excel which had problems rounding off numbers. More information on the SI System (Le Système International d'Unités) base units and definitions.

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last modified: 4 th. April 2011