Activity duration estimator

Define your vertical construction scope to generate an editable, scheduling-ready activity duration worksheet.

Preliminary estimating tool: Output is illustrative and rules-based, not calibrated historical production data, RSMeans data, a logic-linked CPM schedule, or statistically supported P50/P80 forecasts. Review quantities, crews, calendars, sequencing and contractual milestones before relying on it.

New project

Project name

Building use

Gross building SF

Above-grade floors

Basement levels

Workdays per week

Structure

Exterior enclosure

MEP intensity

Site access

Occupied / phased renovation

Elevators included

Emergency generator included

Working-day values assume separate crews can perform many work packages in parallel. No overall project completion date is inferred by summing activity durations.

Ready to calculate

Enter your project scope and choose Generate activities & durations.

You'll get applicable GC activity packages, editable durations, and a CSV export for schedule preparation.

Recommended activities

Preliminary planning assumptions

0Activity packages

0Gross SF

5-dayWorkweek basis

Division	Activity / work package	Basis	Working days	Uncertainty

Durations are independent package allowances. They do not include P6 relationships, procurement lead times, activity calendars, a critical path or a guaranteed construction period. CSV contains only the rows currently displayed, including your edits.