construction-estimating

Open-source construction ERP - BOQ, PDF/CAD/BIM takeoff, AI cost matching, 293 guided cases. 120,000+ priced positions, 44 languages, 190+ modules, cost data for 40+ markets. AGPL-3.0. pip install openconstructionerp

Open-source (AGPL-3.0) PDF takeoff for construction & flooring — the first engine an AI agent drives natively over MCP, not bolted on. Rooms measured on the wall faces, symbol sweeps, materials + quantities with full provenance, built for preconstruction. Runs entirely in your browser.

AI-native construction estimating platform for intake, takeoff, pricing, scheduling, knowledge, and quotes.

YOLOplan automates symbol detection and counting in technical drawings (PDF, images, CAD) using YOLO11 object detection. Built for MEP professionals, it streamlines takeoff for electrical, HVAC and more - fast, accurate and production-ready.

Free, open-source PDF takeoff & estimating for flooring (and any trade) — open a plan, set the scale, trace areas with one-click room detection, add waste % and a materials buy list, then export your quantities. Runs entirely in your browser.

Pure TypeScript & Python calculation libraries for construction estimating — concrete, gravel, roofing, lumber, paint, flooring, and more.

Top Construction Takeoff 🌟 Star if you like it! 🌟

Top Construction Estimating 🌟 Star if you like it! 🌟

End-to-end residential construction estimating workflow including quantity takeoff, BOQ, contractor pricing, cost-loaded scheduling, Earned Value Management (EVM), commercial reporting, and project controls.

Symbol detection and circuit tracing for MEP construction drawings. Detects electrical symbols with YOLO11, traces how they are wired, and exports netlists and per-circuit counts to CSV, Excel, DXF or PDF. Hosted at mepdetect.com.

Free construction estimating Excel template & cost tracking workbook. Automate AIA bidding summaries, quantity takeoff, and WBS project budgets.

Free construction takeoff practice plans: five synthetic plan sets, 42 answer checks, an instructor guide, and an Excel quantity worksheet.

Python/SQL construction-estimating and KPI reporting workflow for supplier savings, benchmark price variance, reconciliation controls, and profitability/ROI metric governance.

Constants used by the TakeoffMetric construction calculators (bag yields, aggregate densities, swell factors, rebar weights, lumber sizes), each linked to its primary source. CSV + Frictionless datapackage, CC BY 4.0.