WI-SCORE v1.0.0 · open method
The Global WoodIntel Score.
Six dimensions, one open formula each, no weighting. Four are derived from standardised inputs; two are rule-based estimates whose rules are printed in full. Nothing here is a recommendation.
Pick the one thing your project is actually constrained by — durability, carbon, maintenance, fire, circularity or sourcing — sort by it, and read the top of the list. The composite is only an unweighted average; it is not a ranking of "best wood".
What the six dimensions meanOne question per dimension
- Durability
- How long does it last, averaged over the modelled climate zones?
- Carbon
- How much biogenic carbon does one cubic metre store?
- Maintenance
- How long between maintenance interventions?
- Fire performance
- How slowly does the section char under the standard fire curve?
- Circularity
- How recoverable is the material at end of life?
- Sourcing & biodiversity
- What is the sourcing and biodiversity risk of the supply chain?
Robinia (Black Locust)
Robinia pseudoacacia
Durability77Carbon100Maintenance78Fire performance88Circularity90Sourcing & biodiversity10089
Composite
Thermally Modified Ash
Fraxinus excelsior (TMT)
Durability75Carbon100Maintenance77Fire performance88Circularity82Sourcing & biodiversity10087
Composite
European Oak
Quercus robur
Durability57Carbon100Maintenance75Fire performance88Circularity90Sourcing & biodiversity10085
Composite
Sweet Chestnut
Castanea sativa
Durability56Carbon90Maintenance75Fire performance88Circularity90Sourcing & biodiversity10083
Composite
Iroko (FSC certified)
Milicia excelsa
Durability78Carbon100Maintenance78Fire performance88Circularity90Sourcing & biodiversity4580
Composite
Siberian Larch
Larix sibirica
Durability38Carbon95Maintenance75Fire performance50Circularity90Sourcing & biodiversity10075
Composite
Thermally Modified Pine
Pinus sylvestris (TMT)
Durability56Carbon77Maintenance76Fire performance50Circularity82Sourcing & biodiversity10074
Composite
Acetylated Radiata Pine
Pinus radiata (acetylated)
Durability78Carbon82Maintenance80Fire performance50Circularity74Sourcing & biodiversity7072
Composite
Douglas Fir
Pseudotsuga menziesii
Durability34Carbon86Maintenance69Fire performance50Circularity90Sourcing & biodiversity10072
Composite
Western Red Cedar
Thuja plicata
Durability54Carbon60Maintenance75Fire performance50Circularity90Sourcing & biodiversity8068
Composite
Scots Pine (heartwood)
Pinus sylvestris
Durability32Carbon81Maintenance66Fire performance50Circularity75Sourcing & biodiversity10067
Composite
Norway Spruce
Picea abies
Durability18Carbon73Maintenance61Fire performance50Circularity75Sourcing & biodiversity10063
Composite
How to read this
The composite is the unweighted mean of the six sub-scores. It is unweighted on purpose: any weighting encodes a project priority, and that decision belongs to the specifier. Sort by the dimension your project is actually constrained by.
Durability, maintenance, carbon and fire are derived from WI-INDEX v1.0.0 (generated 2026-08-03) and from EN 16449, EN 1995-1-2 and EN 13501-1. Circularity and sourcing are rule-based estimates; their rules are printed above so you can disagree with a specific rule rather than with the number. Scores are comparative, not absolute, and are not a substitute for project-specific assessment.
Machine-readable: GET /api/public/v1/scores · CC BY 4.0