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Sustainable Materials Footprint

Embodied CO₂e of a build from the mass of common structural and finishing materials (ICE database cradle-to-gate factors).

Result

Embodied CO₂e (gross)
6,775 kgCO₂e
Biogenic carbon stored (timber)
−2,400 kgCO₂e
Net embodied carbon
4,375 kgCO₂e
Equivalent car km
36,458 km
Trees to offset (30 yr)
175
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About this calculator

Embodied carbon = mass (kg) × factor (kgCO₂e/kg). Indicative factors: cement 0.91, concrete C30/37 0.13, steel rebar 1.99, structural timber 0.44 (biogenic ≈ −1.6 net), CLT 0.44, brick 0.24, plasterboard 0.39, glass 1.44, EPS 3.29, mineral wool 1.28. Timber and hempcrete lock in biogenic carbon; steel and cement are the biggest hotspots.

Frequently asked questions

What does the Sustainable Materials Footprint do?
Embodied CO₂e of a build from the mass of common structural and finishing materials (ICE database cradle-to-gate factors). Embodied carbon = mass (kg) × factor (kgCO₂e/kg). Indicative factors: cement 0.91, concrete C30/37 0.13, steel rebar 1.99, structural timber 0.44 (biogenic ≈ −1.6 net), CLT 0.44, brick 0.24, plasterboard 0.39, glass 1.44, EPS 3.29, mineral wool 1.28. Timber and hempcrete lock in biogenic carbon; steel and cement are the biggest hotspots.
Is the Sustainable Materials Footprint free to use?
Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.
How accurate is the Sustainable Materials Footprint?
Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified construction & building professional before committing to a purchase or a job.
What inputs does the Sustainable Materials Footprint need?
Enter values for: Concrete (kg), Cement (kg), Steel rebar (kg), Structural timber (kg), CLT panel (kg), Brick (kg). Sensible defaults are pre-filled where possible so you can start with a single change.
Can I embed the Sustainable Materials Footprint on my own website?
Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.
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