PlannerPERT estimator

Jobsite PERT Estimator

Estimate

Job name Prepared by Start date Skip weekends Confidence level Overhead & profit % Target finish (work days) Client budget ($)

Tracking progress

Status as of Contract price ($) Crew available (people) Crew-days used to date Cost of delay ($ / work day)

Saved jobs on this device

Scope of work

Best / Likely / Worst for each step

How the numbers work

For each step you give three guesses. PERT weights the likely case 4×: Expected = (Best + 4×Likely + Worst) ÷ 6, and the spread is σ = (Worst − Best) ÷ 6.

After lists the steps that must finish first (e.g. 2,3). Blank means it can start day one. The longest chain is the critical path; its spread sets schedule risk. Cost spread adds up across every step.

Tracking: enter % done and dollars spent per step. Earned value = expected cost × % done. The forecast re-runs PERT on the work that is left, starting from the status date, and adds what you've already spent.

Confidence levels assume a normal distribution. When two chains are nearly the same length, real schedule risk is a bit higher than shown. Template prices are regional placeholders; replace them with your own.

Schedule @ 90%

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Expected – · σ –

Finish by –

Cost @ 90%

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Expected – · σ –

Contingency –

Quote price @ 90% + 15% O&P

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Progress · –

Complete (earned)–

Spent vs earned–

Forecast finish–

Forecast cost @ 90%–

Projected profit–

Chance to finish in target

Set a target

Chance to stay in budget

Set a budget

Confidence table

Biggest remaining swings · tighten these first

Scope of work

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