What makes a timber floor genuinely low carbon?
A timber floor can only be considered low carbon when the claim is supported by transparent, third-party environmental data. When assessing options for sustainable wood flooring and low carbon timber flooring, look for:
- Environmental Product Declaration (EPD): verified product-specific life cycle impacts (often reported cradle-to-gate A1A3).
- Clear carbon reporting: including manufacturing emissions and (where applicable) biogenic carbon storage in the wood.
- Responsible forestry evidence: for example FSC-Certified timber flooring or equivalent chain-of-custody certification.
- Durability data: longer service life reduces replacement frequency and whole-of-life emissions.
For Reserve House, the low-carbon case was supported with EPD data for Bjelin Woodura European Hardened Timber XL, which reports:
- Gross cradle-to-gate emissions (A1A3): 8.40 kg CO2-eq/m2
- Biogenic carbon stored in the wood: -14.30 kg CO2-eq/m2
- Net cradle-to-gate emissions: -5.90 kg CO2-eq/m2
In practical terms, this means the carbon stored in the timber can outweigh the emissions generated during manufacturing at the point of production-an important consideration when targeting lower upfront embodied carbon.
