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🌲How it is made

Wood · Anisotropic cellulose composite grown as trees — carpentry, mass timber and a combustible story that codes still manage.

At a glance
Score intensity

Darker cells mean a higher score for this topic on that metric.

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Quick answers

Is Wood non-combustible?

Declared reaction class in this atlas: D–B depending on product / treatment. Assemblies still need resistance tests.

Does Wood insulate?

Thermal mark 56/100 versus the atlas. Conductivity note: ~0.1–0.2 W/m·K along vs across grain.

What is the density band?

0.3–0.8 g/cm³ typical

How is it made?

Origin story: Palaeolithic tools; CLT 1990s Austria (Global forests / Graz).

Can it be recycled?

Circularity mark 76/100 — editorial, route-specific.

Typical melting or failure heat?

chars ~200–300 °C; does not melt

heat 32 · fire 34

Start with this section - How it is made

Making Wood is a chain: feedstock, conversion (Palaeolithic tools; CLT 1990s Austria), forming, heat, finish, install.

Skip a step and the properties chapter is describing a different object.

Process steps

01 Feedstock

Ore, monomer, fibre, mineral or scrap that can legally become Wood.

02 Conversion

Palaeolithic tools; CLT 1990s Austria

03 Forming

Cast, spin, weave, sinter, foam, laminate or coat — the step that sets anisotropy.

04 Heat / cure

Temper, vulcanise, calcine or dry: skip it and the datasheet is fiction.

05 Finish

Coatings, sizings, facers, galvanizing, anodising, painting.

06 Install

Fasteners, adhesives, DFT, compression, dryness — site quality is a material property.

Routes

Primary

Virgin route around Global forests / Graz.

Recycled / secondary

Wood has a real loop when sorting is honest.

Specialty

High-spec grades leave the commodity mill.

Site-applied

Coatings, sprays, casts — the factory is sometimes a jobsite.

Diagrams

Wood process path

Feedstock to installed product.

  1. Feed — in
  2. Convert — mill
  3. Form — shape
  4. Finish — coat
  5. Install — out
  6. Spec — code
  7. Scrap loop — rec

Wood heat & fire

Energy in, class out.

  1. Heat — in
  2. Wood — mat
  3. λ / char — out
  4. Ignition — fire
  5. Euroclass — class
  6. Assembly — sys

Hard limits

Envelope

Melting/softening chars ~200–300 °C; does not melt; conductivity ~0.1–0.2 W/m·K along vs across grain.

Environment

Moisture, UV, chlorides, alkalis or oxygen — pick the one that actually kills Wood.

Code

Fire class D–B depending on product / treatment is a starting letter, not a wall rating.

Process energy and scrap quality belong in the carbon passport, not in a footnote.

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