| What AI does | Draft quantities and BOQ line items from drawings or models |
|---|---|
| Maturity | Pilot first |
| Check before you rely on it | An estimator checks every line, rate and the drawing revision |
| Who it helps | Contractors, Engineers |
Which AI tools can help?
Examples from our independent AI tools directory. They are examples, not endorsements.
Togal.AI · Paid
Togal.AI
AI quantity takeoff that detects, measures, counts and classifies quantities on drawings, built for estimators.
Best for: Contractors, Engineers
Read the listing →Civils.ai · Paid
Civils.ai
AI for quantity takeoff from PDF drawings and automated drawing checks for civil and construction projects.
Best for: Engineers, Contractors
Read the listing →Pique Innovations · Free
Construction AI
AI tools for drawing sets: answers on counts and areas, PDF takeoff on Mac and iPad, and survey PDF to DXF conversion.
Best for: Contractors, Engineers
Read the listing →
CloudBrain · Free
aecobuild
Free, offline, SketchUp-style 3D modeler with parametric BIM, IFC exchange, live BOQ and photoreal renders.
Best for: Architects, Engineers, Developers
Read the listing →
A prompt to try
Works in a general AI assistant such as ChatGPT, Claude, Gemini or Microsoft 365 Copilot. Replace the “…” with your own material.
Turn the quantities below into BOQ line items with item number, description, unit and quantity, following the format of the sample items. Keep every quantity exactly as given and do not add rates. Sample items: … Quantities: …
How does AI help with BOQ and quantity takeoff?
Takeoff tools detect and measure elements on PDF drawings or read quantities from models, then export them for your estimate. General assistants can format quantities into BOQ items in your standard layout.
How do you start?
- Pick one project where the task repeats and the result is easy to check.
- Set up the inputs: a template, consistent source files and clear instructions.
- Run it alongside your current process and compare results and time.
- Agree the check: an estimator checks every line, rate and the drawing revision.
- Scale it once the review step is a habit and the time saved is measured.
What should you check?
An estimator checks every line, rate and the drawing revision. AI can be confidently wrong, so a qualified person reviews every output before it leaves the office.
Frequently asked questions
How accurate is AI takeoff?
- It depends on drawing quality and setup. Test it on completed projects where you know the final quantities before relying on it.
Which drawings work best?
- BIM models and clean vector drawings give the best results; scanned PDFs the weakest.