Estimate the weight of timber and lumber from its dimensions and species, for softwood, hardwood and green timber.
Timber weight depends heavily on species and moisture. Dry softwood is around 500 kg/m³, dry hardwood around 700 kg/m³, and freshly cut (green) or pressure-treated timber is much heavier because of its water content.
Use the green/treated option for newly delivered treated timber, which can weigh 50% more than kiln-dried stock. These figures are averages, so treat the result as an estimate for planning lifting and transport.
It depends on the cross-section, length, species and moisture. The calculator multiplies the volume by a realistic density for the wood type you pick.
Freshly cut and pressure-treated timber holds a lot of water, which can make it 30 to 50 percent heavier than the same kiln-dried piece.
Around 500 kg/m³ for dry softwood such as pine or spruce. Use the green/treated option for heavier, wet stock.
Yes. Dry hardwoods like oak are around 700 kg/m³ or more, compared with about 500 kg/m³ for dry softwood.
No, they are estimates. Actual weight varies with species, grade and moisture content, so use the result as a guide for handling and transport.
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