We Open Sourced Our Construction Calculators
The pure calculation layer behind 26 construction calculators is available as a typed, zero-runtime-dependency package for JavaScript and TypeScript projects.
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Field-aware guides for estimators and builders: read the plans, measure the work, price the risk, and use AI as an assistive layer rather than an unchecked answer.
Estimator field notes
Eight practical guides for better plan review, takeoffs, pricing, and bids.
The pure calculation layer behind 26 construction calculators is available as a typed, zero-runtime-dependency package for JavaScript and TypeScript projects.
Read articleA disciplined estimate connects drawing quantities to current local pricing, then exposes assumptions, indirect costs, risk, overhead, and profit. This guide shows the full chain without treating a national average as your bid price.
Read articleWinning starts before takeoff. Qualify the opportunity, control the documents, level the scope, price the risk, and submit a proposal an owner can evaluate without guessing what your number includes.
Read articleAn accurate estimate is a controlled chain from scope to quantity to unit cost. Here is the practical workflow for reviewing plans, measuring work, pricing labor and materials, and presenting the result with its assumptions intact.
Read articlePlans are a coordinated instruction set, not a stack of isolated pictures. Learn the navigation system, then cross-check views, schedules, details, specifications, and revisions before measuring or building.
Read articleChoose a narrow market, validate demand, meet local licensing and insurance rules, protect cash, and build a repeatable estimating and delivery process before chasing growth.
Read articleMachine learning can accelerate parts of quantity takeoff, but no universal accuracy rate applies to every drawing or project. Reliable budgets still depend on human review, calibrated measurement, current pricing, and explicit risk decisions.
Read articleAI can help teams sort observations and identify patterns, but it cannot guarantee prevention or replace competent people, site inspections, worker participation, or legal safety duties.
Read articleFrom reading to review
Open a plan, review AI-assisted detections, correct the quantities, and carry approved work into a quote.
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