BIM Quantity Take-Off Services

01 — The Challenge

Traditional quantity take-offs can be time-consuming, especially on large and complex projects with frequent design revisions.

Common challenges include:

• Manual measurement from 2D drawings

• Large volumes of drawings to review

• Difficulty maintaining quantity accuracy

• Repetitive measurement activities

• Inconsistent measurement methods

• Design changes affecting previously calculated quantities

• Difficulty identifying missing or duplicated elements

• Coordination issues between drawings and models

• Quantities distributed across multiple disciplines

• Limited traceability between quantities and model elements

• Time-consuming quantity updates during design revisions

• Difficulty extracting quantities from complex geometry

VDEC uses BIM-based workflows to extract, organize, validate, and report project quantities in a structured and repeatable manner.

02 — VDEC Solution

Our BIM Quantity Take-Off Services use coordinated digital models and structured data extraction to provide measurable project information.

Architectural Quantities

• Floor Areas

• Wall Areas

• Ceiling Areas

• Floor Finishes

• Wall Finishes

• Doors & Windows

• Partitions

• Paint Areas

• Façade Areas

• Roofing

• External Works

Structural Quantities

• Concrete Volume

• Reinforcement Quantities

• Structural Steel

• Columns

• Beams

• Slabs

• Foundations

• Walls

• Precast Components

• Formwork Quantities

MEPF Quantities

HVAC

• Duct Lengths

• Duct Areas

• Pipe Lengths

• Fittings

• Equipment

• Insulation

• Accessories

Electrical

• Cable Tray

• Conduit

• Cable Lengths

• Lighting Fixtures

• Electrical Equipment

• Panels

• Devices

Plumbing

• Pipe Lengths

• Fittings

• Fixtures

• Equipment

• Valves

• Accessories

Fire Protection

• Pipe Lengths

• Fittings

• Sprinkler Heads

• Valves

• Equipment

• Accessories

Model-Based Estimating

• Material Quantities

• Component Quantities

• Area / Volume Calculations

• Length-Based Quantities

• Count-Based Quantities

• Model Element Schedules

• Discipline-Based Quantity Reports

• Location-Based Quantities

Our objective is to create reliable quantity information that can be traced back to the BIM model and updated efficiently as the project develops.

03 — Deliverables

Quantity Take-Off Reports

• Detailed Quantity Take-Off

• Discipline-Wise Quantities

• Material-Wise Quantities

• Element-Wise Quantities

• Floor-Wise Quantities

• Zone-Wise Quantities

• Area-Based Quantities

• Volume-Based Quantities

• Length-Based Quantities

• Count-Based Quantities

Architectural Quantities

• Floor Finishes

• Wall Finishes

• Ceiling Finishes

• Doors & Windows

• Partitions

• Paint

• Façade

• Roofing

• External Works

Structural Quantities

• Concrete

• Reinforcement

• Structural Steel

• Formwork

• Foundations

• Columns

• Beams

• Slabs

• Structural Walls

MEPF Quantities

• Ductwork

• Piping

• Cable Tray

• Conduit

• Equipment

• Fixtures

• Valves

• Fittings

• Accessories

• Insulation

Data & Reporting

• Excel Quantity Reports

• BIM Schedules

• Material Take-Offs

• Quantity Summary Sheets

• Model-Based Reports

• Revision Comparison Reports

• Quantity Change Reports

• Supporting BIM Views

04 — Our Process

01. Project Requirement Review

We review the project scope, measurement requirements, BIM Execution Plan, specifications, drawings, quantity standards, client requirements, and intended use of the quantity information.

02. Model & Drawing Collection

We collect the latest BIM models, drawings, schedules, specifications, and supporting project information.

03. BIM Model Validation

Before extracting quantities, we review the models for:

• Completeness

• Element classification

• Model structure

• Naming

• Parameters

• Units

• Levels

• Phasing

• Duplicate elements

• Missing information

04. Quantity Strategy

We establish the appropriate quantity extraction methodology based on the project requirements.

This may include:

• Element-based measurement

• Area measurement

• Length measurement

• Volume measurement

• Count-based measurement

• Material-based measurement

05. Model-Based Quantity Extraction

Quantities are extracted from the BIM environment based on defined measurement rules and project requirements.

06. Quantity Classification

Extracted information is organized by:

• Discipline

• Building

• Level

• Zone

• System

• Material

• Element

• Type

• Specification

07. Quality Control

Our team reviews quantities for accuracy, completeness, duplication, missing elements, incorrect classifications, and inconsistencies.

08. Quantity Validation

Selected quantities are cross-checked against drawings, schedules, model views, and project information to verify reliability.

09. Revision Comparison

Where required, we compare different model revisions to identify changes in quantities resulting from design development.

10. Final Reporting

Validated quantity information is delivered in the required formats for estimating, tendering, procurement, budgeting, and construction planning.

05 — Software & Technology

VDEC uses industry-standard BIM and data technologies, including:

Autodesk Revit | Navisworks | AutoCAD | Autodesk Construction Cloud (ACC) | BIM 360 | Microsoft Excel

Our workflows can be adapted to client-specific measurement standards, quantity structures, cost codes, BIM Execution Plans, classification systems, templates, and reporting requirements.

06 — Benefits

Faster Quantity Extraction

Reduce the time required to measure large volumes of project information manually.

Improved Quantity Accuracy

Extract quantities directly from structured BIM information using defined measurement rules.

Reduced Manual Measurement

Minimize repetitive measurement from drawings and improve team productivity.

Better Traceability

Connect reported quantities back to model elements and project information.

Faster Design Updates

Recalculate quantities efficiently when the BIM model changes.

Better Cost Planning

Provide structured quantities to support estimating, budgeting, and cost planning.

Improved Procurement

Help procurement teams understand material and component requirements earlier.

Better Tender Support

Provide organized quantity information to support tender preparation and contractor pricing.

Multidisciplinary Quantification

Extract quantities across Architecture, Structure, HVAC, Electrical, Plumbing, and Fire Protection.

Revision Comparison

Identify quantity changes between different design or model revisions.

07 — Example Project

BIM Quantity Take-Off for a High-Rise Development

Project Type: High-Rise Commercial / Mixed-Use Development
Scope: BIM Quantity Take-Off + Model Validation + Quantity Reporting
Disciplines: Architecture + Structure + HVAC + Electrical + Plumbing + Fire Protection
LOD: 350

VDEC Approach

VDEC reviewed the multidisciplinary BIM models and established a structured quantity extraction methodology aligned with the project's requirements.

The team validated model elements, parameters, materials, levels, and classifications before extracting quantities.

Quantities were then organized across building levels, zones, disciplines, systems, materials, and element categories.

Key quantities included concrete, structural steel, floor and wall finishes, doors and windows, ductwork, piping, cable trays, equipment, fixtures, and other MEPF components.

The extracted quantities were reviewed through structured quality checks and delivered as detailed reports for project estimating and procurement activities.

Outcome

The BIM-based quantity workflow provided the project team with structured, traceable, and efficiently updateable quantity information, supporting better estimating, procurement planning, and project decision-making.

08 — Turn Your BIM Model into Measurable Data

A BIM model contains more than geometry, it contains valuable project information.

VDEC helps transform that information into structured quantities that project teams can use for estimating, budgeting, procurement, tendering, and construction planning.

Our BIM Quantity Take-Off services connect:

BIM Model → Data → Quantities → Cost Planning → Procurement → Construction

Whether you need architectural, structural, MEPF, material, or multidisciplinary quantity take-offs, VDEC can provide model-based quantity information tailored to your project requirements.