Thermo-Pine Decking
Nordic pine taken to durability class 2 by heat and steam alone — the softwood deck that behaves, cupping and twisting far less than untreated pine because the modification has driven out most of the moisture the wood would otherwise take back up. Rich golden-brown when laid, silver-grey within a couple of years if left alone. The shortest-lived of Thermory’s three, and the least expensive.

Carbon and evidence
Product Evidence
Evidence currently held for the Thermory product record.
Recorded Carbon Result
A1–A3 GWP-total per m³ of board, per the EPD's own impact table. Negative because 736 kgCO2e of biogenic carbon is held in the timber. That store is not permanent: the same EPD declares C3 = +740 kgCO2e when the boards are processed at end of life, so cradle-to-grave is close to neutral rather than strongly negative.
Indicator: GWP-total
A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.
Environmental Product Declaration
EPD recorded- Coverage
- Specific product
- Declared unit
- 1 m³ 432 kg
- Programme
- EPD Hub
- Registration
- HUB-4211
- Standard
- EN 15804:2012+A2:2019/AC:2021
- Valid until
- 2030-10-27
- Verification
- Third-party verified
Single product, no factory grouping. 56.9% of A1–A3 is manufacturer-specific data. Covers Thermory’s thermally modified pine boards, which serve both decking and cladding.
Carbon profile
kgCO2e per 1 m³ of board · each bar starts at zero · local scale
A1-A3 product
-588
A4-A5 site*
69.6
B use
—
C end of life
743
D reuse / recycling
-837
Stores more carbon than making it emits — and the stored carbon largely leaves again at end of life.
Reported GWP Modules
Displayed as stored; modules are not added together here.
A1–A3
-588 kgCO₂e
per 1 m³ of board
A4*
67.3 kgCO₂e
per 1 m³ of board
A5*
2.32 kgCO₂e
per 1 m³ of board
C1
0.171 kgCO₂e
per 1 m³ of board
C2
2.33 kgCO₂e
per 1 m³ of board
C3
740 kgCO₂e
per 1 m³ of board
C4
0 kgCO₂e
per 1 m³ of board
D
-837 kgCO₂e
per 1 m³ of board
Upfront Carbon (A1–A5)*
-518 kgCO₂e per 1 m³ of board
A1–A3 -588 + A4 67.3 + A5 2.32 · GWP-total, as declared
Sourced Product Claims
2 claims are held in the staging record but not presented as product evidence because an exact public source has not yet been mapped.
Evidence Sources
Comparison Status
This result should be displayed for information only and not ranked against another product.
- • The carbon result is not linked to an evidence source.
- • The EPD is not linked to an evidence source.
Evidence Gaps
- •2 sustainability claims are withheld because exact public evidence is not mapped.
Design & Specification Notes
Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.
Nordic pine taken to durability class 2 by heat and steam alone — the softwood deck that behaves, cupping and twisting far less than untreated pine because the modification has driven out most of the moisture the wood would otherwise take back up.
Typical Uses
- •Paths & paving
- •Public realm surfaces
- •Permeable groundworks
Key Performance
Durable external surface with slip resistance.
Specification Actions
- •Confirm FSC or PEFC certification for all timber products.
- •Request chain-of-custody documentation from supplier.
- •Confirm the current EPD covers the selected product, finish and manufacturing route.
Indicative Health & Indoor Air
Thermal modification uses heat and steam only — no preservatives or biocides are added. Modified timber is more brittle than untreated softwood and the dust is fine; standard cutting-dust precautions apply. Specify stainless fixings — thermally modified timber is more acidic than untreated wood and will stain around plain steel.
Specification
- Range
- Thermo-pine decking
- Collection
- Benchmark
- Finish
- Thermally modified Nordic pine deck board
- Country of manufacture
- Estonia