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The Drawings module is the system of record for a client site’s technical drawings — floor plans, network and riser diagrams, cable paths, rack elevations, conduit layouts, and as-builts. Each drawing is scoped to a company (and optionally a survey, bid, or project), holds the uploaded file with full revision history, and can be read by Claude Vision into structured room data — to render a 3D isometric view and to count low-voltage devices for bid takeoff. Open it at /drawings.

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When to use it

  • Store and version-track client site drawings.
  • Associate a drawing with a company, survey, bid, or project for traceability.
  • Turn a floor-plan image into a 3D isometric view of rooms, doors, and features.
  • Auto-count low-voltage devices and cable runs for bid takeoff.

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Upload and versioning

Upload files up to 64 MB across 11 drawing types (floor plan, network diagram, riser, cable path, as-built, site plan, rack elevation, conduit layout, and more), with metadata like building, floor, area, scale, sheet number, and revision. Each upload becomes a numbered version — the latest shows on the detail page, and you can remove individual versions.

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AI floor-plan analysis and 3D

Run Analyze floor plan on an image drawing and Claude Vision extracts rooms, doors, corridors, and safety features. From that, NEXOS CORE renders a server-side isometric 3D view (/drawings/{id}/3d) — no plugins, just SVG.

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Quantity takeoff

For drawings attached to a bid, an AI takeoff counts low-voltage devices and cable runs and feeds the bid engine’s reconciliation. When the drawing is scoped to a bid, the takeoff is gated to only the trades that bid actually covers.

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Good to know

  • AI features are image-only — PNG/JPG/WebP work; PDF, DWG, and SVG files are stored but can’t be analyzed.
  • AI output is the model’s best estimate — treat extracted dimensions, positions, and quantities as a starting point to verify, not gospel.
  • The 3D view is empty until you run Analyze.
  • Drawing annotations (pins, notes, measurements) aren’t available yet.