BIM Clash Detection Services — Hard, Soft & Workflow Clashes Resolved
Identify and resolve design conflicts before they become costly on-site problems — using Navisworks and advanced BIM coordination workflows.
Detect Conflicts Early — Before Construction Begins
Clash detection is the core of BIM coordination, shifting the problem-solving from the construction site to the virtual environment. We identify physical interferences, clearance violations, and workflow issues between architectural, structural, and MEP models before ground is even broken.
Types of Clashes We Detect & Report
Hard Clashes
Physical overlaps between elements — a pipe running through a structural beam, a duct penetrating a slab without a sleeve.
Soft Clashes
Clearance and maintenance zone violations — insufficient space for equipment access, inadequate separation between services.
Workflow Clashes
Construction sequencing conflicts in 4D models — activities that cannot physically occur in the planned order.
What Every Clash Detection Report Includes
Clash Count Summary
Total count + breakdown by discipline pair and severity level.
Screenshots & Viewpoints
Every clash has an attached viewpoint image for easy identification.
Clash IDs & Status Tracking
New / Active / Resolved / Approved status for every issue.
BCF Format
Industry-standard BIM Collaboration Format file for Navisworks, Revit & BIM 360.
Excel Clash Log
Full spreadsheet with clash ID, type, location, discipline pair, and status.
Recommended Resolutions
Practical resolution notes for each identified clash.
How We Configure Clash Detection
• Tolerance Rules
Hard clash: 0mm tolerance. Soft clash: 25–50mm clearance zones. Applied consistently across all tests.
• Discipline Pair Tests
Separate clash tests created for each discipline pair (e.g. HVAC vs. Structure, Plumbing vs. Electrical) for organized, actionable results.
• Intelligent Filtering
Known acceptable intersections (rebar through concrete, bolt heads, etc.) are filtered to eliminate false positives.
• Model Preparation
Unit and scale mismatches between discipline models are resolved before any clash test is run.
The Cost of Not Using BIM Clash Detection
"Studies show BIM clash detection saves $10–15 for every $1 invested in pre-construction coordination."
"Undetected clashes discovered on-site are estimated to add 3–10% to total construction costs."
"A typical mid-size commercial project has 500–2,000+ potential clashes before coordination."
*Client project statistics to be added — [Replace with real clash counts from ASBIM projects]*