Standard
EN 14081-1 — Strength grading and CE marking of structural timber
Clause 5–7. Sets the requirements for visual and machine strength grading, factory production control and CE marking of rectangular structural timber. A strength class claim is only valid when the grading rule, species and source are declared together — a class cannot be assigned to timber of unknown provenance.
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.
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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=standard-en14081-grading · CC BY 4.0