The hardware nobody draws
Gaskets and stud bolts aren't on the drawing. They're derived from the flange joints, and they're 35–55% of your line items.
AI Takeoff & Estimating · IndustrialBuilt for Piping Estimators.
Built for Piping Estimators.
End to End.
theTakeoff reads the package you receive - P&IDs, the Isometrics, the line list, your pipe class sheets - applies B31.3 and B16.5, and builds the MTO in minutes.
Piping Skid
Structure & pipe
Valve0
Flange0
Intake
Estimate from whatever the bid package gives you
No clean data required. theTakeoff reads what actually arrives - PDFs on a shared drive, scanned sheets, native CAD, 3D model exports where they exist.
P&IDs
The logic - connectivity, valve counts and types, instruments, equipment, spec breaks, insulation and tracing codes. Not lengths. Never lengths.
Line list + pipe class sheets
The structured starting point. The line list is the spine - every line number, size, spec class, service, insulation code. The pipe class sheet is what each class actually means: material, schedule, flange rating, branch table, valve types. Read first, because these are facts, not inferences.
General arrangements
Scaled routing and equipment positions - the measurable geometry, for when isos don't exist yet.
Isometrics
Lengths, fittings, flanges, valves, welds and spool breaks, straight off the BOM table and the drawing body.
3D model exports
The richest source in the package. Goes to the top of the waterfall, ahead of anything read off a sheet.
AI Takeoff & Estimating · Industrial
Four ways a piping takeoff goes wrong. We built for all five.
The spec break mid-run
The class changes halfway down the line and the takeoff doesn't. theTakeoff reads the break off the P&ID and the line list, and reprices the run either side of it.
The addendum that lands Friday at four
Roughly a quarter to a third of bids take an addendum, and the takeoff gets redone.
Contradictions buried across 1,000 pages
The P&ID says 6-inch gate. The line list says 4-inch. Three documents, three answers, one line number. theTakeoff flags what disagrees before your estimator finds it on page 847.
Before you ask
Estimator-hours on an industrial piping package
~875 → ~300Saved per bid cycle
$49–63KSeeded on the codes you already estimate under
B31.3&B16.5First-pass extraction - verified by your estimator
~70%Your tender data stays private.
ContraVault AI is built for sensitive tenders and bids, with access controls, encryption, and audit trails so your team can work faster and securely.
