Concrete Mix AI
Concrete Mix AI is a browser-based toolkit for concrete professionals, civil engineers, contractors, estimators, inspectors, and students. Its free plan takeoff service accepts vector PDF or DWG plan sets and returns estimated concrete, rebar, and CMU quantities traced to the drawings, with calculation explanations and questions for engineer review. It reads schedules, legends, notes, and dimensions, checks scale against drawing dimensions, and flags conflicts between schedules, drawings, and specifications. Users receive a private takeoff link and quantities CSV by email. The takeoff provides quantities, not job prices or bids; estimates should be verified before ordering. The site also offers concrete calculators, including a material-cost estimator, ACI certification practice exams in English and Spanish, and building-code tools. Takeoffs, calculators, exams, and code tools are free, and takeoffs require no account.
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PreConstruct AI
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.
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BidScreen XL
BidScreen XL, an Excel add-in, quantity takeoff application, gives you the power to takeoff your electronic plans directly in Microsoft Excel. BidScreen XL provides an outstanding audit trail while automating and speeding up the time-consuming takeoff process. Takeoffs are a snap, just click on a spreadsheet cell and measure and identify areas, lengths and counts from your digital drawing files. The measurements and color-coded takeoff drawings are saved with the Excel workbook and can be edited and printed. And, you can apply colors, count symbols, line styles and area fill patterns to your drawings. Sample estimating Excel template files for general contractors, concrete, roofing, painting and other subtrades are also included. Works with PDF and DWG vector files; isolate layers and snap to the object to obtain exact measurements. Open multiple quantity takeoff files or multiple pages of a file with a single click.
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EstimatorAI
EstimatorAI is cloud-based construction estimating software that analyzes PDF bid packages, including plans, specifications, scopes, and addenda. Estimators, general contractors, subcontractors, and trade contractors can organize documents by project and ask plain-language questions about quantities, materials, assemblies, exclusions, and scope conditions. Uploads can be up to 1 GB. The software produces a first-pass material takeoff and links answers to source documents for review. Users can check and adjust extracted quantities, then export material and quantity information to Excel or PDF for their estimating workflow. Unlimited projects keep bids organized, and persistent project context lets teams revisit bid details and ask follow-up questions without starting over. Trade-specific workflows cover concrete, masonry, metals, wood, plumbing, HVAC, and electrical. EstimatorAI supports document review while construction professionals verify scope, pricing, and final estimates.
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