BIM Coordination & Model Conflict Review

BIM Clash Detection Services

Optimar Precon provides BIM Clash Detection Services for architectural, structural and MEP models, helping project teams identify hard clashes, soft clashes, clearance issues and coordination conflicts in federated BIM environments.

Our BIM specialists review model interfaces, group coordination issues and prepare structured clash information for design review, coordination meetings and subsequent model updates.

Hard Clash Detection Soft Clash Detection MEP Clash Detection Federated Model Review Navisworks Clash Reports
29
29+ Years Group Experience
3K
3,270+ Projects Completed
98
98% Client Retention
7+
7+ Global Delivery Centres
Hard Clash Review Soft Clash Review Clearance Analysis MEP Coordination Navisworks Reports Model Validation
BIM Clash Detection Scope

What Do BIM Clash Detection Services Review?

BIM Clash Detection Services review coordinated model information to identify physical conflicts, clearance concerns and discipline interfaces across architectural, structural and MEP systems.

BIM clash detection model showing architectural structural and MEP coordination conflicts
Federated model review helps project teams examine how building systems interact within shared spatial zones before subsequent coordination updates.
Three Core Clash Categories

Hard, Soft and Clearance Clash Detection

Clash tests should be configured around the project disciplines, model maturity, defined tolerances and required access zones rather than treating every model intersection as the same type of issue.

H
Hard Clashes

Physical overlaps where two model elements occupy the same space.

S
Soft Clashes

Spacing or tolerance concerns between nearby model elements.

C
Clearance Clashes

Conflicts affecting required access or maintenance zones.

Model Interfaces Reviewed

Where Do Coordination Clashes Commonly Occur?

Clash review focuses on interfaces between disciplines and systems where geometry, routing, access zones or structural elements share the same project space.

A/S

Architecture vs Structure

Review walls, slabs, beams, columns, openings and architectural elements for model-interface conflicts.

M/S

MEP vs Structure

Review ducts, pipes, conduits and cable trays against beams, slabs, columns and structural openings.

M/A

MEP vs Architecture

Check building services against ceilings, walls, rooms, shafts, doors and architectural zones.

M/M

MEP vs MEP

Coordinate HVAC, plumbing, electrical and fire-protection systems where routes share congested spaces.

EQ

Equipment Clearances

Review equipment access, maintenance zones and service clearances around plant and technical equipment.

SP

Shafts & Ceiling Spaces

Review dense vertical and horizontal service zones where multiple trades compete for limited space.

Clash Information

What Can a Clash Record Include?

The reporting structure can be configured around the coordination workflow and information required by the project team.

Issue ID
Model Viewpoint
Screenshot
Clash Location
Disciplines
Clash Type
Priority
Responsibility
Coordination Note
Not Every Intersection Is a Clash

Test rules and tolerances should reflect the project scope so useful model relationships are not treated as issues.

Model Quality Matters

Clash review depends on the geometry, discipline separation and model information available in the submitted files.

Define Priorities Early

Grouping issues by discipline, severity and location helps coordination teams review model conflicts systematically.

Have federated BIM models ready for review?

Send your Revit, IFC or Navisworks files with the disciplines and coordination scope you want reviewed.

Coordination Workflow

How Our BIM Clash Detection Process Works

Our BIM Clash Detection Services follow a structured workflow from model collection and federated-model setup through clash testing, issue reporting, model updates and final coordination review.

Project Inputs

What Should You Send for Clash Detection?

Send the latest available discipline models together with relevant coordination information and defined review requirements.

Revit Models
IFC Files
NWC / NWD Files
Discipline Models
Coordination Scope
Clash Rules / Tolerances
BIM clash detection workflow showing federated MEP model review and coordination clash identification
Federated BIM coordination combines model review, clash-test configuration, issue identification and structured reporting across architectural, structural and MEP systems.
Visual Coordination Review

See Model Conflicts in Context

A federated model allows coordination teams to review each clash in relation to the surrounding structure, equipment and building services.

  • MEP versus structure review
  • Duct, pipe and cable-tray conflicts
  • Equipment and maintenance clearances
  • Shaft and ceiling-space coordination
  • Navisworks viewpoints and issue records
6-Step BIM Coordination Process

From Model Collection to Clash Closeout Review

The workflow organizes model information, clash tests and issue records so coordination teams can review conflicts in a structured sequence.

01
Input

Model Collection

Review the supplied Revit, IFC, Navisworks and discipline files together with the required coordination scope.

02
Setup

Federated Model Setup

Architectural, structural and MEP models are assembled in a shared coordination environment for review.

03
Test

Clash Test Configuration

Define model pairs, hard-clash rules, clearance requirements, tolerances and system-specific tests.

04
Review

Issue Detection & Grouping

Detected issues are reviewed and grouped by discipline, system, location, clash type and priority.

05
Report

Clash Report Delivery

Prepare agreed clash records with issue IDs, viewpoints, screenshots, locations and coordination notes.

06
Validate

Revised Model Review

After model changes, revised files can be reviewed again to check the status of previously identified issues.

Clash Test Setup

Define the Test Matrix Before Running Clash Detection

A structured test matrix helps separate meaningful coordination issues from acceptable model relationships.

Model Pairs Define which disciplines or systems should be tested against each other.
Tolerances Apply agreed spacing or dimensional tolerances where required.
Clearance Zones Review access and maintenance requirements around equipment and services.
Clash Categories Separate hard, soft and clearance issues during review.
Priority Rules Group issues according to agreed coordination priorities.
Review Zones Focus tests on floors, shafts, plant rooms or other defined areas.
Clash Detection Deliverables

What Can the Coordination Package Include?

Deliverables can be configured around the project’s coordination platform, reporting requirements and issue-review workflow.

RPT Clash Reports

Structured records of identified coordination issues.

VPT Navisworks Viewpoints

Saved model views linked to individual coordination issues.

IMG Clash Screenshots

Visual references showing identified model conflicts.

LOG Issue Logs

Trackable lists of issues, disciplines and review status.

BCF BCF / Issue Records

Model-coordination information prepared for compatible workflows.

VAL Revised Model Review

Follow-up review of updated models against identified issues.

Coordination QA

What Do We Review Before Issuing Clash Reports?

Quality review focuses on the defined clash scope, model setup and clarity of the reported issues.

Model Alignment Check that supplied models are positioned appropriately for review.
Test Rules Review the agreed clash tests and tolerance settings.
Duplicate Issues Group related conflicts where appropriate for clearer reporting.
Issue Location Confirm reported issues include usable location references.
Viewpoints Review issue viewpoints for clear visual understanding.
Report Structure Check agreed issue fields and coordination information before delivery.
Use Current Models

Clash detection should use the latest available discipline models for the coordination review cycle.

Agree Tolerances

Project teams should define relevant clearances and tolerances before soft-clash testing begins.

Track Model Updates

Revised-model reviews should reference the updated files and previously recorded coordination issues.

Ready to review your federated BIM models?

Send your latest discipline models and coordination requirements for clash detection scope review.

Discuss Your Coordination
Why Optimar Precon

BIM Clash Detection Support for Multi-Discipline Coordination

Our BIM team combines model review, clash-test configuration and structured reporting to support architectural, structural and MEP coordination workflows.

BIM coordination specialists reviewing federated MEP model and clash detection issues
Clash detection combines discipline knowledge, federated-model review, test configuration and structured issue reporting for coordination teams.
Structured BIM Coordination Support

Why Project Teams Use Optimar Precon for Clash Detection

Our specialists review model interfaces and organise coordination issues around the supplied project scope rather than simply exporting raw clash-test results.

Discipline-Specific Review Architecture, structure, HVAC, plumbing, electrical and fire-protection coordination.
Defined Clash Priorities Issues can be grouped by discipline, location, type and priority.
Clear Issue Reporting Viewpoints, screenshots, IDs and coordination notes support issue review.
Revised Model Review Updated models can be checked against previously recorded issues.
Scalable BIM Capacity Support for defined coordination scopes or larger multi-discipline model sets.
Coordination Workflow Support Issue information can support project coordination meetings and review cycles.
High-Risk Coordination Zones

Where Clash Detection Requires Detailed Review

Dense service routes, restricted access and multiple discipline interfaces often require more focused model review.

CLG
Ceiling & Plenum Spaces Ducts, pipes, trays, conduits, lighting and fire protection share limited space.
PLT
Plant Rooms Equipment, pipework and service clearances require coordinated positioning.
RIS
Shafts & Risers Multiple vertical services compete for restricted routing space.
STR
Structural Interfaces Beams, slabs and columns require coordination with building-service routes.
EQ
Equipment Clearances Maintenance and operational zones should remain accessible around equipment.
Clash Detection Software

Tools Used Across BIM Coordination Workflows

Software and file workflows are selected according to the submitted models, coordination requirements and agreed reporting process.

NAV
Navisworks Manage Federated-model review, clash tests, viewpoints and issue grouping.
RVT
Autodesk Revit Discipline-model review and coordination of model updates.
ACC
BIM 360 / ACC Model sharing, issue tracking and cloud-based coordination workflows.
IFC
IFC Workflows Open-model exchange and multi-platform coordination review.
NWD
NWC / NWD Files Coordination files used for aggregated Navisworks model review.
BCF
BCF & Issue Logs Structured issue records, comments and coordination tracking.

Need clash detection for your project?

Send your latest models and coordination scope for project-specific review.

Request Clash Detection Review
Common Coordination Questions

BIM Clash Detection Services FAQs

Answers to common questions about BIM clash detection, federated-model review, hard and soft clashes, project inputs, reporting and revised-model coordination.

What is BIM clash detection?

BIM clash detection is the process of reviewing federated building models to identify physical overlaps, spacing concerns, clearance issues and coordination conflicts between project disciplines.

What is the difference between hard, soft and clearance clashes?

A hard clash is a physical overlap between model elements. A soft clash involves an agreed spacing or tolerance requirement, while a clearance clash affects required access, maintenance or operational space.

Which models can be included in clash detection?

The coordination scope can include architectural, structural, HVAC, plumbing, electrical, fire-protection and other discipline models supplied for federated review.

What files should we send for clash detection?

Common inputs include Revit files, IFC models, NWC or NWD files, discipline models, coordination notes, relevant clash rules and any defined tolerances or clearance requirements.

When should BIM clash detection be performed?

Clash detection is typically performed during model coordination and repeated after meaningful discipline-model updates so new and previously identified issues can be reviewed.

What information can a clash report include?

A project-specific clash report can include issue IDs, screenshots, Navisworks viewpoints, locations, clash categories, discipline references, priority information and coordination notes.

Can you review revised BIM models after coordination updates?

Yes. Revised discipline or federated models can be reviewed against previously identified issues to check their current status and identify additional coordination concerns.

Which software is used for BIM clash detection?

The workflow can use Navisworks Manage, Autodesk Revit, BIM 360 or Autodesk Construction Cloud, IFC workflows, NWC/NWD files and compatible issue-tracking formats according to project requirements.

Federated BIM model showing MEP clash detection and coordination review
Federated Model Review

Review Coordination Conflicts in Model Context

Clash detection allows architectural, structural and MEP systems to be reviewed together so identified issues can be understood within the wider coordination environment.

Architecture Structure HVAC Plumbing Electrical Fire Protection
BIM Coordination Support

Ready to Review Your BIM Models for Coordination Clashes?

Send your Revit, IFC or Navisworks models together with the disciplines, test requirements and coordination scope you want reviewed.

Hard Clashes Soft Clashes MEP Coordination Navisworks Reports Revised Model Review
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