BIM services · Quantity takeoff

Quantities you can trace back to an element.

Model-based measurement mapped to your cost structure, with the assumptions and exclusions written down rather than implied.

Model-based quantity takeoff mapped to NRM, CSI or your own cost codes, with reconciliation and change comparison.

All BIM services
What you receive

Deliverables, stated before we start.

A quantity is only useful if somebody can see which elements produced it. Every line traces back to model elements, and everything the model could not measure is listed rather than buried.

  • Quantity schedules by trade, element and location
  • Mapping to NRM, CSI MasterFormat or your own cost coding
  • Reconciliation against drawings where model coverage is partial
  • Variation and change quantity comparison between model revisions
  • Register of assumptions, exclusions and manually measured items
  • Export in the format your estimating system consumes
Getting started

What we need from you.

Scope gaps are cheaper to resolve before modelling than after. These are the inputs that set the programme and the price.

Input 01

Model at a level of detail that supports the measurement rules

Input 02

Cost breakdown structure and measurement standard

Input 03

Drawings and specification for items not carried in the model

Input 04

Estimating system import format

Delivered in
  • Navisworks Quantification
  • Revit
  • CostX
  • Bluebeam Revu
  • Excel
FAQ

Quantity takeoff — common questions.

Is this a cost estimate?

No. We produce measured quantities and the audit trail behind them. Rates, risk, preliminaries and commercial judgement remain with your cost team.

What if the model is incomplete?

We measure what the model supports, measure the rest from drawings, and mark clearly which is which. The gap is reported, never absorbed silently.

Can you re-run against a new revision?

Yes, and the comparison between revisions is usually the most valuable output — it isolates what actually changed commercially.

Related services

Usually scoped alongside this.

Most packages touch more than one discipline. These are the services that most often sit next to quantity takeoff.

4D & 5D BIM

Link the model to the programme and the cost plan for sequencing, phasing, logistics and progress comparison.

View service

MEP BIM modeling

Coordinated mechanical, electrical, plumbing and fire models with plant room layouts and penetration schedules.

View service

Rebar detailing

Rebar shop and placing drawings with bar bending schedules to BS 8666 or ACI 315, organised by pour.

View service
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