Construction Estimating Software for Contractors

Flat spreadsheet formulas break down when projects grow in scope and complexity. Project OS supports construction activities, production rates, crew assumptions, and cost rollups so estimators can build bids that reflect how work is actually performed.

Line items, assemblies, indirect costs, markup, overhead, and profit settings stay organized in a structured estimate you can revise as supplier pricing, labor rates, or scope changes.

Estimators should not rebuild the same bid in Word, Excel, and email attachments. Generate polished proposals directly from your estimate with consistent scope language, pricing, and branding.

When the client asks for a revision, update the estimate once and refresh the proposal instead of hunting through outdated file versions.

Labor rate schedules, man-hour calculations, and production-rate libraries help teams standardize estimating while still allowing project-specific adjustments. Roll up labor, material, equipment, subcontractor, and indirect costs with clear visibility into margin.

Project OS helps estimators compare alternatives, document assumptions, and produce exports that are easier to review before bid day.

Estimating and scheduling should not live in separate silos. When your estimate feeds project planning, durations, sequencing, and resource assumptions become easier to validate before work starts.

Link estimating outputs to downstream schedule and field workflows so the numbers your team bids are the numbers your PMs and supers plan against.

Stop rebuilding bids from scratch every time scope shifts. Project OS gives contractors a dedicated estimating workspace inside a broader construction project management platform.