Engineering tools.

From a drawing or model to quantities and a clearer decision. Use the existing OpenBIM and Takeoff apps, or work through a calculation here.

Materials & dimensions

Construction Calculators

Calculate concrete slab volume and theoretical rebar mass with explicit units and editable assumptions.

Measure a drawing

Open your existing Takeoff workspace to review drawings and measure project quantities.

Explore a BIM model

Open an IFC model in your browser and inspect its geometry and element properties.

Build a bill of quantities

Create an editable bill of quantities with quantities, unit rates and waste allowances, then export it as CSV.

Excavation & lining

Estimate circular tunnel excavation and lining volumes from geometry, length and an overbreak allowance.

AI workflow economics

Estimate construction AI labor savings, ongoing costs and payback. Explore the original consulting and job-board revenue simulator too.

LOCAL AI FIELD GUIDE

A practical setup tutorial for Windows, Linux, and Apple Silicon: hardware, model files, local chat, and API connections.