Knowledge base
Species Library.
Source of truth.
Mechanical and botanical data for commercial timber species — properties, workability, movement, durability, and buying notes.
76
Species documented
with profile data
52
Hardwoods
European & global
24
Softwoods
commercial species
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12 species matching "European Walnut"
European Walnut
Juglans regia
Hardwood
Density
640 kg/m³
Durability
Class 3
T/R Ratio
1.4
European Whitewood
Picea abies (primarily)
Softwood
Density
450 kg/m³
Durability
Class 5
T/R Ratio
2.2
European Oak
Quercus robur / Quercus petraea
Hardwood
Density
700 kg/m³
Durability
Class 2
T/R Ratio
2.0
European Ash
Fraxinus excelsior
Hardwood
Density
680 kg/m³
Durability
Class 5
T/R Ratio
1.7
European Aspen
Populus tremula
Hardwood
Density
450 kg/m³
Durability
Class 5
T/R Ratio
1.7
European Hornbeam
Carpinus betulus
Hardwood
Density
735 kg/m³
Durability
Class 5
T/R Ratio
1.7
European Larch
Larix decidua
Softwood
Density
575 kg/m³
Durability
Class 3
T/R Ratio
2.0
European Lime
Tilia × europaea
Hardwood
Density
535 kg/m³
Durability
Class 5
T/R Ratio
1.5
European Silver Fir
Abies alba
Softwood
Density
415 kg/m³
Durability
Class 5
T/R Ratio
2.2
Hybrid Larch
Larix × marschlinsii
Softwood
Density
530 kg/m³
Durability
Class 4
T/R Ratio
1.7
SPF (Spruce-Pine-Fir)
Picea spp. / Pinus spp. / Abies spp. (mixed)
Softwood
Density
430 kg/m³
Durability
Class 5
T/R Ratio
2.0
Japanese Larch
Larix kaempferi
Softwood
Density
530 kg/m³
Durability
Class 3
T/R Ratio
1.6
Related tool
Wood Movement Planner
Use species movement data in the calculator — pick a species and get movement estimates for board width and moisture ranges.