Mar 6, 2025 · 6 min read

Building Document Analysis: AI-Powered Spec Extraction

Manual takeoffs from steel building drawings take 2–4 hours per project. Steelbridge automates that work in minutes, giving estimators a structured data set to review and correct rather than starting from scratch.

Building Document Analysis runs a set of specialized AI sub-agents — one for plan views, one for elevations, one for details, and one for spec documents — each reading the drawing types it's optimized for. The result is a complete extraction covering every spec category a manufacturer needs for pricing.

What gets extracted

The analysis produces structured data across eight spec categories:

  • Codes & Loads: Ground snow load, wind speed, seismic category, exposure category, occupancy
  • Dimensions: Width, length, eave height, ridge height, roof slope
  • Bays: Bay spacing, number of bays, interior columns
  • Roof & Walls: Roof panel type, wall panel type, color, insulation
  • Openings: All doors (size, type, location), windows, louvers
  • Frame: Frame type, column base condition, anchor bolt type
  • Accessories: Skylights, ventilators, gutters, downspouts, trim

Real-time progress panel

A live progress panel shows which documents are currently being read and which extraction categories have completed. You don't have to watch it — an "Analysis Complete" notification appears when results are ready. Click "View Results" to open the data table.

Source citations

Every extracted field includes a source citation badge showing which document and page the value came from. Click the badge to navigate directly to that page in the Plans Room and verify the value yourself.

Metric and imperial

A toggle switches all dimensions between imperial and metric simultaneously. Per-field unit metadata is stored with each extraction so conversions are accurate throughout.

See every feature in action

Watch the full platform tour or browse all 17 feature demos.

Watch Feature Videos