Cases / BIM & takeoff
BIM & takeoff

Get quantities from a BIM model

Load a converted model, lift the element quantities straight off the geometry, carry them into a priced bill and validate what you mapped.

3 steps12 minDesign / engineering practiceBIM / digital consultancyCost consultancy / QS practice

How it works, step by step

3 steps across the platform - what you do at each one, and why it matters.

1

Open the model

BIM

Open the converted model in the viewer and browse elements by category and by level. Areas, volumes and lengths are computed from the solid geometry, not counted off a sheet by eye.

Why: A quantity read from the model ties back to a specific element you can select and inspect. When the design moves, you re-read the geometry instead of measuring the whole thing again.

InConverted canonical modelSolid element geometryOutElement quantitiesElements by category
2

Carry them into a bill

BOQ

Map the model quantities onto bill positions and apply your rates. Each position keeps a live link back to the elements it was drawn from.

Why: That link from a priced line to a model element is the audit trail. Anyone reviewing the bill can trace a number back to the design and check it, rather than take it on trust.

InElement quantitiesUnit ratesOutPriced bill positionsLive element links
3

Validate the take-off

Validation

Run the validation rules to confirm the mapped quantities are complete and consistent, and that a classification is present wherever the rule set demands one.

Why: A model can look complete and still miss the one property you need to price. Validation catches the unmapped element and the blank classification before the bill reaches the client.

InMapped bill positionsValidation rulesOutValidation reportFlagged unmapped elements
Modules

Modules in this playbook

3 / 184 platform modules

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