red oak board weight calculator
Enter the dimensions of a red oak board and this works out its volume and weight. Air-dry at about 12% moisture content. Wood density varies by 10% or more within a species.
- Weight of one board
- 4.2
- Volume of one piece
- 6000
- Density used
- 700 kg/m3
Show the working
- Length = 2000
- Width = 1000
- Thickness = 3
- Number of pieces = 1
- volume_mm3 = 2000 * 1000 * 3 = 6 000 000
- Volume of one piece = 6 000 000 / 1000 = 6000
- Density used = 700 = 700
- Weight of one board = 6 000 000 * 700 / 1e9 = 4.2
- Total weight = 4.2 * 1 = 4.2
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- Volume = length x width x thickness
- Weight = volume x density, with density = 700 kg/m3
- One cubic millimetre of a material at 1000 kg/m3 weighs exactly one milligram, so the millimetre-to-kilogram step is a shift of the decimal point rather than a rounded factor.
Air-dry at about 12% moisture content. Wood density varies by 10% or more within a species.
Dimensions are nominal. Mill tolerances on thickness, and the corner radii on formed sections, both move the real weight by a percent or two.
Every field takes inches or feet as readily as millimetres: change the unit next to it and the conversion is done exactly before the arithmetic starts.
Frequently asked
What is the density of red oak?
700 kg/m3, which is 0.700 g/cm3. Air-dry at about 12% moisture content. Wood density varies by 10% or more within a species.
How do you calculate the weight of a red oak board?
Volume = length x width x thickness. Multiply the volume by the density of red oak, 700 kg/m3, taking care that both are in the same unit system.
Can I enter dimensions in inches?
Yes. Each dimension field has its own unit selector, and inch, foot, millimetre, centimetre and metre entries are all converted exactly before anything is multiplied.
Where the numbers come from
- Densities are nominal room-temperature values for the grade named, drawn from the usual mill and handbook figures.
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