Altira

PreConstruct AI is a web-based construction takeoff and estimating application for subcontractors bidding interior finishes, concrete, and wood framing work from PDF drawing sets. It reads drawing scales and uses plan notes, schedules, and partition legends to help identify and measure walls, ceilings, and concrete quantities. AI-assisted wall suggestions are in beta and are reviewed, approved, or adjusted by the estimator. Approved quantities become material lists for items such as studs, board, insulation, tape, compound, paint, concrete, and rebar, with calculations and drawing-sheet references. Estimators can apply their own material prices, create proposal PDFs, and export data to Excel or CSV. Projects can use imperial units, metric units, or both. The application supports estimating workflows; estimators review measurements and quantities before submitting a bid.

Take-Off by WEQS is Windows desktop software for quantity surveyors and construction estimators measuring building drawings. It opens PDF, DWG, DXF and DWFx files, along with drawing photos and scans. After setting a scale, users measure areas, lengths, counts and angles by tracing or selecting existing linework in supported vector drawings. Measurements can be grouped and colour-coded, assigned reference numbers, and marked checked or queried. The take-off list links each quantity to its place on the drawing and totals items by group. Projects save drawings and measurements together in one file. Users can export quantities to Excel or CSV, copy rows into spreadsheets, and print marked-up drawings to PDF. The application installs and runs locally on Windows 10 or 11 and works offline, keeping drawings and quantities on the user's computer. It supports quantity take-off and drawing review workflows for construction plans.