Species

Douglas Fir

Pseudotsuga menziesii · DC 3–4 (moderately to slightly durable)

How to read this

The diagram below shows every direct connection this node has in the graph. Each line is one edge; expand a neighbour group below to read exactly why that connection exists and which standard or dataset it comes from.

Degradation agent (5)

Fungal rotmoderately resists
WI-SL resistance profile: bio = 52/100 (ordinal, from EN 350 durability class, extractive chemistry and movement).
Source: WI-SL v1.2.0
UV degradationmoderately resists
WI-SL resistance profile: uv = 48/100 (ordinal, from EN 350 durability class, extractive chemistry and movement).
Source: WI-SL v1.2.0
Mould & blue-stainmoderately resists
WI-SL resistance profile: moisture = 58/100 (ordinal, from EN 350 durability class, extractive chemistry and movement).
Source: WI-SL v1.2.0
Marine borers & salt attackmoderately resists
WI-SL resistance profile: salt = 52/100 (ordinal, from EN 350 durability class, extractive chemistry and movement).
Source: WI-SL v1.2.0
Freeze-thaw cyclingmoderately resists
WI-SL resistance profile: freezeThaw = 62/100 (ordinal, from EN 350 durability class, extractive chemistry and movement).
Source: WI-SL v1.2.0

Standard (2)

EN 350 — Durability classes of heartwood against wood-destroying fungidurability class from
Declared durability class "DC 3–4 (moderately to slightly durable)" follows the EN 350 Annex B five-step scale.
Source: en350-dc
EN 16449 — Calculation of biogenic carbon stored in woodscored via
The Carbon sub-score for Douglas Fir in WI-INDEX v1.0.0 (generated 2026-08-03) cites this standard.
Source: en16449

How edges in this graph are derivedWI-GRAPH v1.0.0

Species → agent edges come from the WI-SL resistance profile (0–100 ordinal scale derived from EN 350 durability class, extractive chemistry and movement). ≥70 is read as "resists well", 45–69 as "moderately resists", below 45 as "is vulnerable to".

Climate → agent edges fire when a climate's driver value (UV, humidity, salt or freeze-thaw load) is 60 or above, read directly from the climate dataset.

Treatment → agent / standard edges come from the paraphrased standards corpus used across the site (EN 927-1, EN 351-1, EN 350 clause 4, EN 13501-1).

Species → standard edges reuse the exact source list already published for each Global WoodIntel Score sub-score.

Machine-readable: GET /api/public/v1/graph?node=species-douglas-fir · CC BY 4.0