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Planning a garage build, one inspection at a time.

An owner-builder used Pertify to plan a detached garage from permits to final trim.

The full garage plan as a network diagram, one lane per phase, critical path in red
[Example plan caption pending]

At a glance

  • 56 activities
  • 16 phases
  • a 4-person crew and 9 subcontractors
  • 139 working days
Pertify project overview: 44 of 56 activities done, finish Dec 14, SPI 1.06, CPI 0.96
[Example plan caption pending]

The challenge

A small build still has a long chain. Permits before excavation, power before rough-in, inspections before walls close. A missed link can quietly push the whole job back.

Timeline with finished work greyed out and the remaining critical tasks in red past the status date
[Example plan caption pending]

What they did

Started from a builder's whole-house timeline, scaled it to a garage, and grew it to 56 activities across permitting, utilities, foundation, framing, dry-in, rough-in, insulation, siding and interior trim.

Table of interior tasks with optimistic, realistic and pessimistic estimates and the expected time
[Example plan caption pending]

What Pertify caught

The critical path showed the whole job hinged on one chain: permits, foundation, framing, rough-in, insulation, then interior trim. With 31 of 56 activities at zero slack, the crew knew which delays would move the finish and which wouldn't. By October, earned value flagged costs running 4% over, traced to sitework, foundation and the lumber package, while the schedule ran ahead.

Earned value cards and S-curve: planned value, earned value and actual cost to the status date
[Example plan caption pending]
Assignment grid showing who works each task, their allocation and their role
[Example plan caption pending]

Result

At the October 7 status check, 44 of 56 activities were done and the build was tracking slightly ahead of schedule (SPI 1.06) and 4% over cost (CPI 0.96), with the finish forecast for December 14, a day ahead of the baseline.

Plan your own build.

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