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Matrak vs One Click LCA
One Click LCA is a leading whole-life LCA platform. Matrak produces the quantities it needs, straight from the PDF drawings.
What is One Click LCA?
One Click LCA is a life-cycle assessment and EPD platform used worldwide for building certifications. It calculates whole-life carbon (modules A to D) from a BIM model, an imported bill of quantities, or early-stage design archetypes in its Carbon Designer tool, and supports Green Star and NABERS Embodied Carbon reporting in Australia.
Where it shines: A very large database of generic data and EPDs, whole-life LCA to certification standards, and tools for comparing design options early.
Matrak vs One Click LCA, capability by capability
| Capability | One Click LCA | Matrak AI Takeoff |
|---|---|---|
| Measures quantities from PDF drawings | No | Yes |
| Uses supplier EPDs | Yes | Yes |
| NABERS factors (Green Star Upfront Carbon) | Yes | Yes |
| Re-measures each revision and shows the carbon change | No | Yes |
| Every quantity marked up on the drawing | No | Yes |
| Whole-of-life LCA (modules A to D) | Yes | No |
| Certified rating or certification report | Yes | No |
| Where the quantities come from | BIM model, Excel or BoQ import, or design archetypes | PDF drawings, plus any supplier EPDs you attach |
| Pricing | Annual licence, quote-based | Pay per takeoff, carbon included. No subscription. |
Based on each vendor's public product information as at September 2026. Spotted something out of date? Tell us and we'll correct it.
The difference that matters
One Click LCA needs the quantities first: a model, or a bill of quantities someone has already produced. When all you have is a set of PDF drawings, Matrak measures those quantities by AI, puts upfront carbon on every line, and hands you a bill you can check on the drawing.
A carbon tool is only as good as the quantities fed into it, and producing those quantities is the slow, expensive part: a consultant rebuilding a bill of quantities by hand, often months after the drawings. Matrak's AI measures them straight from the PDF drawings in about 30 minutes, applies supplier EPDs first and NABERS factors where there are none, and shows every quantity marked up on the drawing. Run it again on the next revision and you see the carbon change beside the cost change.
Frequently asked questions
Does Matrak replace an LCA tool?
Not for a whole-of-life LCA or a certified rating. Matrak measures upfront embodied carbon (cradle-to-gate, A1 to A3) for each line of the bill of quantities, from the drawings. Many teams use it to get the quantities and a first carbon number fast, then carry the bill into their LCA tool or a NABERS assessment.
Where do the carbon factors come from?
Your suppliers' Environmental Product Declarations (EPDs) when you attach them. Otherwise the NABERS National material emission factors database (v2026.2), the dataset GBCA's Green Star Buildings requires for its Upfront Carbon credit.
How long does it take?
About 30 minutes for a typical project, from PDF drawings to a bill of quantities with carbon on every line. There's no model to build and no quantities to type in.
Can we export it?
Yes. Excel, CSV and the quote all carry the carbon columns, or push it straight into Matrak.