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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.

How to use this page

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?
Sort by
  • Robinia (Black Locust)

    Robinia pseudoacacia

    Durability77
    Carbon100
    Maintenance78
    Fire performance88
    Circularity90
    Sourcing & biodiversity100

    89

    Composite

  • Thermally Modified Ash

    Fraxinus excelsior (TMT)

    Durability75
    Carbon100
    Maintenance77
    Fire performance88
    Circularity82
    Sourcing & biodiversity100

    87

    Composite

  • European Oak

    Quercus robur

    Durability57
    Carbon100
    Maintenance75
    Fire performance88
    Circularity90
    Sourcing & biodiversity100

    85

    Composite

  • Sweet Chestnut

    Castanea sativa

    Durability56
    Carbon90
    Maintenance75
    Fire performance88
    Circularity90
    Sourcing & biodiversity100

    83

    Composite

  • Iroko (FSC certified)

    Milicia excelsa

    Durability78
    Carbon100
    Maintenance78
    Fire performance88
    Circularity90
    Sourcing & biodiversity45

    80

    Composite

  • Siberian Larch

    Larix sibirica

    Durability38
    Carbon95
    Maintenance75
    Fire performance50
    Circularity90
    Sourcing & biodiversity100

    75

    Composite

  • Thermally Modified Pine

    Pinus sylvestris (TMT)

    Durability56
    Carbon77
    Maintenance76
    Fire performance50
    Circularity82
    Sourcing & biodiversity100

    74

    Composite

  • Acetylated Radiata Pine

    Pinus radiata (acetylated)

    Durability78
    Carbon82
    Maintenance80
    Fire performance50
    Circularity74
    Sourcing & biodiversity70

    72

    Composite

  • Douglas Fir

    Pseudotsuga menziesii

    Durability34
    Carbon86
    Maintenance69
    Fire performance50
    Circularity90
    Sourcing & biodiversity100

    72

    Composite

  • Western Red Cedar

    Thuja plicata

    Durability54
    Carbon60
    Maintenance75
    Fire performance50
    Circularity90
    Sourcing & biodiversity80

    68

    Composite

  • Scots Pine (heartwood)

    Pinus sylvestris

    Durability32
    Carbon81
    Maintenance66
    Fire performance50
    Circularity75
    Sourcing & biodiversity100

    67

    Composite

  • Norway Spruce

    Picea abies

    Durability18
    Carbon73
    Maintenance61
    Fire performance50
    Circularity75
    Sourcing & biodiversity100

    63

    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