Upload a structural drawing. Get a complete material list, weight calculation, cost estimate, and client-ready quote — in minutes, not hours.
How it works
Drop your structural PDF. Any format, any size. The system reads it immediately.
Every page is parsed for text. Low-quality scans trigger automatic OCR.
AI reads the text and pulls out every steel member — section, length, quantity, grade.
Each member is matched against a steel profile catalogue. Fuzzy matching catches typos and variants.
Total weight, material cost, and procurement quantities calculated. Bar cutting optimized to minimize waste.
Engineer reviews flagged lines. Low-confidence extractions are highlighted — nothing passes silently.
Complete takeoff report exported as Excel. Ready to send to the client.
The difference
Built for fabricators
Every extracted line gets a confidence score. Uncertain lines are flagged for engineer review — never silently passed forward.
Evaluates 6m vs 12m vs mixed bar lengths and picks the combination with the lowest material waste. Saves 10–25% on offcuts.
Steel prices are frozen at job creation time. Open a job six months later and see exactly what it was priced at and why.
Every action logged. Every override recorded with the engineer's name and timestamp. Full reproducibility months later.
Export is blocked until all flagged lines are reviewed and approved. No unreviewed estimate reaches a client.
Complete takeoff report with material list, stock plan, waste analysis, and cost summary — ready to send to your client.
Why Tonnexis
| Feature | Spreadsheets | SketchDeck LIFT | Beam AI | Tonnexis |
|---|---|---|---|---|
| Extracts steel members from PDF | Manual | Yes | Yes | Yes |
| Calculates total weight | Manual | Yes | Yes | Yes |
| Material cost estimation | Manual | No | No | Yes |
| Procurement optimization | No | No | No | Yes — 6m/12m/mixed |
| Confidence scoring per line | No | No | No | Yes |
| Engineer review gate | No | No | No | Yes |
| Pricing snapshots per job | No | No | No | Yes |
| Full audit trail | No | No | No | Yes |
| Client-ready quote export | Manual | No | Partial | Yes |
| Built specifically for steel fabricators | No | Yes | No — general construction | Yes |
SketchDeck LIFT and Beam AI data based on publicly available product information as of 2025.
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