TL;DR
Ask for E57 as the neutral master archive, RCP/RCS if your team works in Autodesk tools, and LAS when civil or survey consultants consume the data. A typical 100,000 sq ft interior produces 25–60 GB of E57 and 15–30 GB of RCP.
# Point Cloud File Formats Explained: E57, RCP, LAS, and PTS
Which point cloud format should you ask for? A practical comparison of E57, RCP, LAS, and PTS for AEC, surveying, and BIM workflows.
Overview
Point Cloud File Formats Explained: E57, RCP, LAS, and PTS is a topic AEC teams are asking about more often as reality capture becomes the default starting point for renovation, retrofit, and adaptive-reuse work. This article walks through the key considerations, trade-offs, and practical guidance ZEALOT Reality Capture brings to every engagement.
Why does the file format matter?
Modern building projects depend on accurate existing-conditions data. Without it, design teams over-engineer for unknowns and contractors price in risk that owners ultimately pay for. 3D laser scanning eliminates that ambiguity by capturing every surface, dimension, and clearance with millimeter-level accuracy in a single site visit.
What does ZEALOT deliver?
- Mobile LiDAR capture using the NavVis VLX3
- Registered, classified point clouds in E57, RCP, or LAS
- Scan to BIM deliverables in Revit at the LOD your project requires
- 2D CAD drawings, floor plans, and elevations
- Coordinated as-built documentation packages
How should you plan a scan project?
When planning a project of this type, focus on three things: clearly defined deliverables, agreed-upon tolerances, and a realistic schedule that includes registration and QC time. Skipping any of these is the most common reason scan projects miss expectations.
Next Steps
Have a project where this applies?
Related reading: How to write a 3D scan deliverable spec · LOD 200 vs 300 vs 400. If your team needs data registered, cleaned, or converted between these formats, that is our point cloud services scope — and for browser-based viewing without giant downloads, see point cloud hosting.