Embodied carbon calculator
Build a timber material inventory and estimate A1–A3 emissions. Compare a baseline with an alternative while keeping quantities, factors and data sources visible.
Embodied carbon screening
Estimate product-stage A1-A3 emissions with bundled open, generic typical factors from Boverket’s Climate Database. This is an indicative screening estimate, not a project-specific or certified LCA.
Inputs and calculations stay in this browser session; they are not saved to a FrameVerk project or account.
The calculator uses bundled, versioned open generic typical A1-A3 factors from Boverket’s Climate Database. No factor data is fetched at runtime, and inputs and results stay in the browser.
A1-A3 covers raw-material supply, transport to manufacturing and manufacturing. The bundled factors are generic screening data, not project- or product-specific evidence, and this is not a whole-life assessment.
A4 transport, A5 construction, use, maintenance, replacement, end of life, module D and functional-performance verification are excluded.
Timber products can contain temporarily stored biogenic carbon. Direct GWP-GHG excludes biogenic uptake and emissions; any source-reported stored carbon is shown separately and never treated as an extra credit. A1-A3 does not describe end-of-life release, reuse or recycling, or storage permanence.
Boverket’s generic typical factors are not project-specific. Factor choice, geography, product specification, quantities, functional equivalence and omitted life-cycle stages can materially change this indicative estimate.
frameverk_a1_a3_2026_v1 · 02.07.000 · Jan 20, 2027
The estimate multiplies each material quantity by its selected A1–A3 emissions factor. Results are indicative and depend on the declared units, factor source and inventory completeness.
This is not a verified life-cycle assessment or an environmental product declaration. It excludes transport to site, construction, use, replacement and end-of-life stages unless a displayed factor explicitly includes them.