BOQ & Quantity Take-Offs
Model-derived quantities for estimating, procurement and change review, based on agreed scope, model detail and measurement rules.
In-House BIM for Better-Coordinated Projects.
BIM 3D Modelling for Better-Coordinated Building Projects
Trisim’s in-house BIM team helps owners, consultants, contractors and facility teams coordinate building systems, improve quantity take-offs, plan work, identify clashes and prepare dependable as-built information.
3DCoordinated Models
BOQModel-Based Take-Offs
ClashDetection & Review
4DSequencing Support
As-BuiltVerified Handover
Why BIM
How BIM Adds Value
BIM is more than a 3D visualisation. It connects the model to practical project needs: what must be installed, where it fits, how it can be accessed, when work should happen and what information the owner will need after handover.
An In-House Team That Knows the Systems
Our BIM team works alongside the engineers who design, install and commission building systems, so models reflect how fire, security, ELV and MEP services are actually installed and maintained. Site changes are fed back by our factory-trained engineers, helping keep as-built information grounded in what was built.
Clash Detection & Resolution
Federated models are checked for potential conflicts between disciplines, which are reviewed and resolved with the design team before they reach site.
Project Scheduling Support
Where a suitable programme exists, model elements can be linked to activities to review 4D sequencing, access and phasing.
Coordinated Building Systems
MEP and ELV routes, risers, trays and equipment are coordinated with structure and architecture, including access for maintenance.
As-Built Drawings & Model
Models and drawings updated to reflect verified site changes. A design model is not treated as as-built until it has been reconciled with the site.
Handover & Asset Information
Asset schedules and structured model data prepared to the agreed requirements, to support operation and maintenance after handover.
Sectors
BIM for Different Building Types
Each building type brings its own coordination challenges. We plan the model around them.
Offices & Commercial
Coordinated services for flexible floors, risers and ceiling voids.
Hospitals & Healthcare
Dense MEP, medical gases and ELV in tightly constrained ceilings.
Data Centres & Critical Facilities
Power, cooling, containment and cable routes planned with maintenance access.
Factories & Industrial Plants
Process services, utilities and access routes around equipment.
Warehouses & Logistics
High-bay services, sprinklers, lighting and racking clearances.
Hotels & Hospitality
Repetitive room modules, back-of-house services and guest areas.
Education & Campuses
Multi-building campuses, labs, halls and phased works.
Transport Hubs & Public Buildings
Large spans, public circulation and complex ELV coordination.
Residential & Mixed-Use
Stacked services, shafts and shared amenities across uses.
Government & Institutional
Secure areas, record-keeping and long-term asset information.
Tiles describe typical requirements rather than specific completed projects. Photographs are representative illustrations.
What You Receive
BIM Services and Deliverables
Deliverables are agreed at the start of each engagement, with level of detail, formats and measurement rules defined.
3D ModelsArchitectural, structural and MEP/ELV models to the agreed level of detail.
Federated ModelDiscipline models combined for coordination review.
Clash ReportsPotential conflicts listed with location, status and owner.
Quantity SchedulesModel-derived quantities to agreed measurement rules.
4D Sequencing SupportModel linked to a programme, where one is available.
Coordination DrawingsCombined services and sectional drawings for site teams.
As-Built Model & DrawingsUpdated after verified site changes.
Asset SchedulesEquipment and asset data structured for handover.
Quantity Schedule
Illustrative
| Cable tray 300 mm | xx m |
| Conduit 25 mm | xx m |
| Smoke detectors | xx nos |
| Sprinkler heads | xx nos |
Clash Report
Illustrative
| C-014 Duct / beam | Open |
| C-015 Tray / pipe | Review |
| C-016 Pipe / duct | Resolved |
| C-017 Tray / door | Resolved |
4D SequenceIllustrative
Coordinated DrawingIllustrative
Examples are illustrative and use placeholder data.
How We Work
Our BIM Coordination Workflow
A structured process from agreed standards to verified handover information.
- 01Brief & standardsScope, deliverables and modelling standards agreed.
- 02Model reviewInputs and existing drawings checked.
- 03ModellingDiscipline models built to agreed detail.
- 04CoordinationModels federated and checked for clashes.
- 05Issue resolutionConflicts reviewed with designers.
- 06Approved updatesChanges incorporated after approval.
- 07As-built & handoverVerified changes recorded; data handed over.
At A Glance
16 Ways BIM Supports Your Project
Visualise in 3D
Coordinate disciplines
Extract quantities
Support estimating
Detect clashes
Resolve interfaces
Plan sequencing
Review site access
Coordinate ELV systems
Coordinate MEP routes
Reduce rework risk
Track design changes
Prepare drawings
Record verified changes
Structure asset data
Improve handover
BIM Services in India
BIM Modelling, Clash Detection and As-Built Documentation
Trisim provides BIM 3D modelling services for owners, consultants, contractors and facility teams. Our work covers architectural, structural, MEP and ELV coordination, model-based quantity take-offs for BOQ preparation, clash detection, 4D scheduling support and as-built documentation.
BIM is particularly useful where many services share limited space, such as control rooms and command centres, data centres, hospitals and industrial facilities, and where smart building systems need accurate locations for devices and cable routes.
Quantity accuracy depends on model scope, level of detail and measurement rules. Clash detection identifies potential conflicts; resolution remains with the design team. 4D support requires a project programme. As-built information is reconciled against verified site changes. Images are illustrative renders.
Let's Talk
Talk to Our BIM Team
Owners, consultants, contractors and facility teams: share your drawings, scope and deliverables, and our BIM team will get back to you.
Discuss Your BIM RequirementsCorporate Head OfficeP-505, Keyatala Road, Southern Avenue,
Kolkata – 700 029
Kolkata – 700 029
Regional Office, OdishaPlot No. 454, Saheed Nagar,
Bhubaneswar – 751 007
Bhubaneswar – 751 007
Emailsales@trisim.in