Multi-page PDF upload
Upload full drawing sets, organized into revisions with a current-set indicator.
Features
What EC Takeoff does today
Built around one idea: AI should highlight probable devices and hand them to you for review — not hand you an unquestioned result. Every quantity stays traceable back to the sheet it came from.
Drawings
PDF viewer
PDF.js-based viewer with page thumbnails, zoom, fit-width, and page navigation.
Revision compare
See what changed between two uploaded revisions of the same sheet.
Automatic analysis
Scale detection
Reads the drawing scale directly from the sheet.
Title block extraction
Sheet number, title, discipline, and revision read automatically per page.
Sheet classification
Distinguishes plans, schedules, legends, and details so counts don't pick up schedule rows or title-block text.
Fixture & device counting
Symbol detection
Detects lighting fixtures, exit/emergency devices, panels, and other electrical symbols on plan sheets.
Schedule matching
Matches detected tags against luminaire and panel schedules for description, wattage, and manufacturer/model.
Linear fixture runs
Traces continuous linear fixture runs and reports total length, not just a count.
Human-in-the-loop review
Sheet review queue
Low-confidence sheets are flagged for review — you correct sheet number, title, discipline, and scale before they count.
Approval is permanent
Once you approve a sheet, automatic re-analysis never silently overwrites your correction.
Takeoff & reporting
Takeoff items
Promote detected counts straight to your takeoff, or add and edit items manually.
Project report
Project info, sheet review completion, and quantity totals in one view.
CSV export
Export your takeoff items for your estimate.