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Matrak vs Qflow
Qflow tracks carbon from what actually arrives on site. Matrak measures it from the drawings before you build.
What is Qflow?
Qflow is a site data platform that captures delivery dockets and waste tickets from photos, then calculates as-built embodied carbon and waste, using EC3 data, with reporting for BREEAM and LEED.
Where it shines: Real as-delivered data during construction, including waste, with little extra work on site.
Matrak vs Qflow, capability by capability
| Capability | Qflow | Matrak AI Takeoff |
|---|---|---|
| Measures quantities from PDF drawings | No | Yes |
| Uses supplier EPDs | Yes | Yes |
| NABERS factors (Green Star Upfront Carbon) | No | 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) | No | No |
| Certified rating or certification report | Partial | No |
| Where the quantities come from | Photos of delivery dockets and waste tickets | PDF drawings, plus any supplier EPDs you attach |
| Pricing | 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 Spotted something out of date?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
Qflow measures after the materials arrive. Matrak measures from the drawings at tender and design stage, while carbon can still be designed out, and again at every revision. The two fit together: an estimate before you build, an as-built record after.
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.