How do I install the Oce Bim Takeoff skill?

Run npx skillmds@latest add gabrielmoreira/oce-bim-takeoff in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Oce Bim Takeoff safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Oce Bim Takeoff?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Oce Bim Takeoff free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Oce Bim Takeoff?

gabrielmoreira (@gabrielmoreira) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Oce Bim Takeoff by gabrielmoreira — Agent Skill

Name: Oce Bim Takeoff
Rating: 4.5 (4 reviews)
Author: gabrielmoreira

Oce Bim Takeoff

CAD/BIM takeoff in OpenConstructionERP: upload Revit/IFC/DWG/DGN models, browse elements, bulk-link them to BOQ lines, measure DWG drawings and PDF plans, and push quantities into the estimate. Use for any model-based quantification workflow.

gabrielmoreira Updated Sep 9, 2026 17 repo stars

File contents

BIM & CAD Takeoff in OpenConstructionERP

Supported formats

Format	In	Out
RVT (Revit)	upload	canonical JSON, GLB, thumbnails
IFC	upload (no IfcOpenShell required)	JSON/GLB
DWG	upload + layer browse	measured entities
DGN	upload	JSON/GLB
PDF	plan upload	vector/room measurements, dimension text (OCR optional)
LAS/LAZ/COPC	point-cloud viewer	decimated THREE.Points buffers

Conversions run in-process via the bundled DDC converters; artifacts persist under data/bim/{project_id}/{model_id}/.

Workflow

Upload the model to a project (POST /api/v1/bim/...).
Browse elements (walls, slabs, doors…) with quantities computed from the model geometry (area / volume / length).
Bulk-link to BOQ — select 100 wall elements → one BOQ line with aggregated area; the element↔cost links are stored, so changes flow both ways.
Measure drawings — DWG layers (vector entities) and PDF plans (rooms/walls) measure in place; results push into BOQ rows.
Verify — the linked quantities appear in the BOQ grid; the estimate quality score updates.

Matching elements to cost items

POST /api/v1/costs/suggest-for-element ranks cost items for a BIM element body (type, material, dimensions, classification).
Matches carry confidence/certainty badges — review low-certainty picks before binding.

4D/5D hand-off

Element quantities → BOQ (5D cost model).
Task links → schedule (4D): each task can carry linked BIM elements for visual sequencing.

Honest limitations

The platform does not run FX/PPP conversions at takeoff time — markets are pre-priced upstream.
RVT/IFC extraction uses the bundled converters; exotic family data may need the converter repo (cad2data-Revit-IFC-DWG-DGN-pipeline).
Point-cloud ingestion supports LAS/LAZ/COPC (E57 via the optional extra).

Best practices

Link elements in bulk, not one-by-one — the platform aggregates per BOQ line.
Keep original CAD only when you need re-conversion (keep_original_cad); artifacts are always retained.
Verify takeoff quantities against the model's own dimensions, then re-run BOQ validation.

---name: oce-bim-takeoffdescription: CAD/BIM takeoff in OpenConstructionERP: upload Revit/IFC/DWG/DGN models, browse elements, bulk-link them to BOQ lines, measure DWG drawings and PDF plans, and push quantities into the estimate. Use for any model-based quantification workflow.--- # BIM & CAD Takeoff in OpenConstructionERP ## Supported formats | Format | In | Out | |---|---|---| | RVT (Revit) | upload | canonical JSON, GLB, thumbnails | | IFC | upload (no IfcOpenShell required) | JSON/GLB | | DWG | upload + layer browse | measured entities | | DGN | upload | JSON/GLB | | PDF | plan upload | vector/room measurements, dimension text (OCR optional) | | LAS/LAZ/COPC | point-cloud viewer | decimated THREE.Points buffers | Conversions run in-process via the bundled DDC converters; artifacts persist under `data/bim/{project_id}/{model_id}/`. ## Workflow 1. **Upload** the model to a project (`POST /api/v1/bim/...`). 2. **Browse** elements (walls, slabs, doors…) with quantities computed from the model geometry (area / volume / length). 3. **Bulk-link to BOQ** — select 100 wall elements → one BOQ line with aggregated area; the element↔cost links are stored, so changes flow both ways. 4. **Measure drawings** — DWG layers (vector entities) and PDF plans (rooms/walls) measure in place; results push into BOQ rows. 5. **Verify** — the linked quantities appear in the BOQ grid; the estimate quality score updates. ## Matching elements to cost items - `POST /api/v1/costs/suggest-for-element` ranks cost items for a BIM element body (type, material, dimensions, classification). - Matches carry confidence/certainty badges — review low-certainty picks before binding. ## 4D/5D hand-off - Element quantities → BOQ (5D cost model). - Task links → schedule (4D): each task can carry linked BIM elements for visual sequencing. ## Honest limitations - The platform does not run FX/PPP conversions at takeoff time — markets are pre-priced upstream. - RVT/IFC extraction uses the bundled converters; exotic family data may need the converter repo (`cad2data-Revit-IFC-DWG-DGN-pipeline`). - Point-cloud ingestion supports LAS/LAZ/COPC (E57 via the optional extra). ## Best practices 1. Link elements in bulk, not one-by-one — the platform aggregates per BOQ line. 2. Keep original CAD only when you need re-conversion (`keep_original_cad`); artifacts are always retained. 3. Verify takeoff quantities against the model's own dimensions, then re-run BOQ validation.

Frequently asked questions