All IFC guides
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4D Construction Progress: IFC + Temporal Point Cloud Demo
Scrub through structural phases, follow a lifted panel and reveal a deliberately shifted column return cluster against the IFC reference.
How to View an IFC on a 3D Map: Georeferenced BIM in the Browser
Open a real IFC4 pavilion in its Barcelona map context, inspect the live 3D demo, and learn how IfcProjectedCRS and IfcMapConversion place BIM correctly.
Tunnel Inspection Digital Twin: IFC + Mobile LiDAR Replay
Move an inspection trolley through dense services, visualize its scan fan and localize a changing wall-condition cluster in the IFC corridor.
Warehouse Digital Twin: IFC + Moving LiDAR in the Browser
See a forklift and an autonomous cart move through a dense warehouse point cloud while the IFC stays available as the designed spatial reference.
IFC + Video on 3D Terrain: Interactive Construction Demo
See the actual viewer place video beside IFC as a screen, terrain overlay or billboard, then try metric position and opacity in the browser demo.
IFC Point Cloud Viewer: Real Scan-to-BIM Case + Browser Demo
See a real CRAS TLS-to-IFC alignment, inspect sections and launch an interactive IFC + LAS browser demo with no model upload.
Real-Time LiDAR + IFC in the Browser: MCAP Replay Demo
Run the actual web replay interface and learn the bounded buffers, binary frames and telemetry behind an honestly labelled simulated IFC + LiDAR stream.
BEP Clauses That Actually Prevent Bad IFC Deliveries
Most BEPs say models must be "of suitable quality" and nothing else — which is why quality arguments never end. Four short clauses, written to be pasted, that turn an opinion into a testable condition.
IFC Acceptance Criteria: How to Accept or Reject a Model Without an Argument
"This model is unusable" versus "the model is fine" is an argument with no ending. A one-page acceptance table, agreed before the first delivery, turns it into a five-minute check with a documented outcome.
What to Hand Over With an IFC Model (Beyond the IFC)
A delivery is a claim: this model is fit for this purpose at this revision. Evidence is what turns the claim into something the receiver can check without repeating your work — and what stops the same argument happening twice.
10 Common IFC Model Errors and How to Detect Them
The ten errors that appear most often in IFC files delivered on real projects — what causes them, how a model checker detects them, and how to fix them at the source.
Best Free IFC Viewer in 2026: Honest Comparison of 10 Tools
There is no single best IFC viewer — the right choice depends on your workflow. Independent comparison of 10 tools across browser vs desktop, validation depth, BCF, IDS, privacy, and large-file handling. Honest strengths and limitations for each.
Best IFC Model Checkers in 2026: Honest Comparison
An independent comparison of eight tools on actual checking depth — not just what their marketing says. Includes checking capability table, workflow fit guide, and honest assessments of what each tool does and does not do.
How to Check an IFC Model Before Delivery (Step-by-Step)
A practical workflow for BIM coordinators: export, schema check, quality check, fix errors, IDS validation, archive the report. With checklists for each stage and ISO 19650 stage gate guidance.
IFC Model Checker vs IFC Viewer: What's the Difference?
Checkers validate data against rules and produce a quality score. Viewers render geometry and let you browse properties. Here is how to know which one your workflow needs — and when you need both.
IFC Model Checker: The Complete Guide (2026)
What IFC model checking actually means, how the three validation layers work, and how to use a checker to enforce quality gates before every model delivery.
Solibri Alternative in 2026: When Browser-Based IFC Validation Is Enough (And When It Is Not)
Solibri remains one of the strongest BIM quality control platforms available. Not every IFC workflow needs its full weight. An honest comparison of Solibri and browser-based IFC validation — when each is the right tool, where they complement each other, and how to decide.
Browser-Based IFC Validation vs Cloud: The Architecture Decision BIM Teams Get Wrong
Offline IFC validation via WebAssembly — nothing uploaded, works on site. Browser vs cloud IFC validator: privacy, GDPR, upload speed, offline use, and when each architecture wins.
Free Online IFC Editor: Edit IFC Properties Without Revit or Archicad
Edit IFC properties free in your browser — nothing uploaded, no Revit needed. Honest guide to every tool: Revit, ArchiCAD, Solibri, BIMVision, and when each one wins.
IFC Health Score: The Definitive Guide for BIM Coordinators and Managers
An IFC Health Score is not a percentage — it is a decision-making tool. How it is calculated, what each band means, how to set thresholds in the BEP, and how to use it as a quality gate at every project stage.
IFC Model Checker: The Complete Guide to IFC Validation, Model Quality, and IDS
IFC model checker guide: schema, model quality (44 rules + Health Score), and IDS are three independent layers. Confusing them causes delivery failures. Complete breakdown for BIM coordinators.
Can You Use an Online IFC Viewer with Confidential Project Data?
The NDA in your project contract doesn't care which software you use. Before opening a sensitive IFC in any online tool, here's the technical test that tells you — in 30 seconds — whether your data stays on your machine.
GDPR and BIM Data: What Every Project Manager Needs to Know (2026)
IFC files can contain personal data under GDPR. Sharing a model with a subcontractor via a cloud tool creates data processing obligations with legal teeth. Here's what EU project teams need to understand before the next BIM delivery.
The BIM Tool IT Security Checklist: 10 Questions Your IT Department Will Ask
IT won't approve a new tool just because it's useful. They'll ask about data residency, encryption, GDPR, sub-processors, and source auditability. Here are the 10 standard questions — and exactly how IFC Viewer Online answers each one.
Free Online IFC Viewers Compared (2026): Privacy, Size Limits & Features
There are a dozen free browser-based IFC viewers now, and they make very different trade-offs — some upload your file to a server, some cap out at 10 MB, some have no validation at all. Here's an honest comparison to help you pick the right one for the job.
How to Reduce IFC File Size (Without Breaking the Model)
A 900 MB IFC won't email, takes forever to open, and crashes the coordinator's viewer. You can usually cut it by 70–90% — but only some methods are safe. Here's how to shrink an IFC without destroying the data people need downstream.
How to Validate an IFC File Before You Send It (Free, No Upload)
Your BEP says 'deliver a quality IFC' but never defines how to check it. Here are the three real ways to validate an IFC file — the buildingSMART service, IfcOpenShell, and an in-browser health check — what each one actually catches, and the pre-send checklist that stops models being rejected at the CDE.
How to View IFC in the Browser with three.js, web-ifc & Fragments
Loading an IFC into a three.js scene sounds simple until the first 200 MB model freezes the tab for two minutes. The trick the libraries teach is: don't parse IFC at runtime. Here's how web-ifc, Fragments, and a convert-once pipeline actually fit together.
IFC Coordinates Are Wrong: Survey Point, Base Point & Georeferencing Explained
You import the IFC and the building is two kilometres away — or sitting at the origin when it should be georeferenced to a national grid. Revit's three coordinate systems and IFC's georeferencing entities don't line up by default. Here's how to get the model where it belongs.
IFC Properties Missing After Export From Revit? The Fix Checklist
You exported the model, opened the IFC, and half your parameters are gone — or worse, they exported fine for you but vanished when a colleague ran the same export. Here's the checklist that explains why IFC properties go missing from Revit and how to get every one of them across.
Read IFC Property Sets in Python with IfcOpenShell
You need to pull property data out of an IFC — quantities, classifications, custom Psets — and into a spreadsheet, a database, or a QA check. IfcOpenShell makes it a few lines of Python. Here's the practical cookbook, including the get_psets shortcut everyone wishes they'd found first.
Revit ↔ Archicad via IFC: The Round-Trip Problems Nobody Warns You About
You link an Archicad IFC into Revit and find duplicate geometry floating hundreds of feet in the air — even though the same file looks perfect in the cloud viewer. Cross-tool IFC exchange has failure modes that only show up between vendors. Here's what breaks and how to work around it.
The Complete Guide to IFC Quality: From Export to Delivery
Every BEP demands a 'quality IFC' and almost none define it. This is the complete, practical guide to what IFC quality actually means — the failure categories that get models rejected, how to check each one, and a repeatable workflow that gets you to a deliverable file.
Why IFC GUIDs Change on Every Export (and How to Keep Them Stable)
You re-export the same model, send it to your coordinator, and every BCF comment, clash issue, and FM tag is suddenly pointing at the wrong element — or nothing at all. The cause: your IFC GlobalIds were regenerated. Here's why it happens and how to lock them down.
Why Large IFC Files Crash Your Browser (and How to View a 1 GB Model)
A 600 MB federated IFC, 1.7 GB of RAM, 3 frames per second, then the tab dies. Large IFC files break most web viewers for concrete technical reasons. Here's what's actually happening — and how to open a model that size without a server or a high-end workstation.
Why Your Revit IFC Export Breaks (and How to Fix Each Cause)
The geometry exported fine last week. This week elements are on the wrong floor, walls are missing, and the whole model is sitting in the wrong place. Revit IFC exports break for a handful of predictable reasons — here's how to identify which one bit you, and fix it.
View IFC Files in Your Browser — Free, No Installation
You're 20 minutes from a client call and just received a 200 MB IFC file. No Revit, no Navisworks, no BIM software. Here's how to open, inspect, and validate it before the call ends.
What Is a BIM Health Check? The IFC Health Score Explained
Your project BEP says 'deliver a quality IFC'. Nobody defines what that means until the model gets rejected. An IFC Health Score turns vague quality requirements into a number everyone can track.
Duplicate GUIDs in IFC: The Silent Error That Breaks Everything
Three weeks into a BCF coordination issue, you realise the comments reference elements that have vanished from the model. The model looks fine. The error: two elements sharing the same GlobalId — and every tool downstream has been silently confused since day one.
IFC, RVT, NWD, DWG: Which BIM File Format Should You Deliver?
Your structural engineer delivers RVT. Your MEP contractor uses NWD. The client wants IFC. Your PM is asking for DWG drawings. Here's how to navigate the format maze and why open BIM actually matters for delivery.
The 7 Most Common IFC Validation Errors (and How to Fix Them)
Duplicate GUIDs, orphan elements, and broken spatial hierarchies account for over 80% of IFC delivery rejections. Here's how to spot and fix each one before the model reaches the CDE.
IFC Health Score: The Single Number Your BIM Team Needs
What is an IFC Health Score, how is it calculated, and why should every project BEP specify a minimum threshold before CDE delivery?
How to Export Clean IFC Files from Revit: A Step-by-Step Guide
Revit's default IFC export settings produce avoidable validation warnings by the dozen. Here are the exact settings that eliminate the most common failures before the file reaches the CDE.
IFC2x3 vs IFC4: Should You Upgrade Your Export Schema?
Most BIM projects still deliver IFC2x3 despite IFC4 being the ISO standard since 2018. Here's what changes with IFC4, when to upgrade, and how to handle the transition without breaking existing tools.
ISO 19650 Compliance for IFC Deliveries: A Practical Checklist
ISO 19650 specifies information requirements for BIM deliveries. Here is what that means for your IFC files — from filename conventions to embedded project metadata — and how to verify compliance before submission.