Home / Reference
Reference Library
Timber Reference Data
Authoritative, sortable reference tables built from real species data — density, hardness, moisture behaviour and thermal modification. Free for the whole wood industry.
Wood Engineering Glossary
25 terms defined in plain language — EMC, MOR, MOE, Janka, T/R ratio, kerf, Hoppus — each with what it decides in practice.
Wood Density Database
Specific gravity and kg/m³ for all 60 species, sortable lightest to heaviest.
Janka Hardness Database
Janka ratings in lbf and newtons, ranked softest to hardest.
Strength Properties (MOE & MOR)
Modulus of elasticity and rupture — stiffness and bending strength for beam and post design.
Durability & Fire
EN 350 natural durability class and indicative ASTM E84 fire performance for every species.
Thermal Conductivity
Heat-conduction k values (USDA formula) — how well each wood insulates, lightest to densest.
Moisture Content Reference
Green MC, fiber saturation, shrinkage and T/R ratio for every species.
ThermoWood Species Database
Base woods for thermal modification with class, mass loss and durability.
Looking for a specific species? The Species Database has a full profile page for each of the 60 woods, combining all of this data with descriptions and the tools that use it.