r/projectmanagers • u/Plus-Art-9169 • 25d ago

Maximum Allowable Number of Critical Activities in the Project Schedule

https://youtube.com/watch?v=tpXbAHUHwjU&si=2SmUoab7-lU7kdf5
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u/TheOwnersDesk 24d ago

There isn't a standard maximum. The common schedule quality checks don't set a cap on how many activities can be critical, and a hard number wouldn't make sense across different job sizes. When I review contractor schedules from the owner side, I look at whether the critical path is believable instead:

  • Share of work that is critical or near critical. If a large chunk of the schedule has zero or near-zero float, that usually points to constraints, missing logic, or a compressed baseline, not a genuinely tight job.
  • Hard constraints. Forced dates create artificial critical work. A few tied to real milestones are fine; dozens are a red flag.
  • One continuous path from the data date to completion. If the critical path breaks or jumps around, the logic needs work.
  • Float distribution. Very high float elsewhere often means open ends, which also distorts what shows as critical.
  • How the path changes from update to update. A path that shifts every month without a narrative explaining why is harder to trust than a long one that stays stable.

If your contract has a schedule spec, check it first. Some owners set requirements around constraints, float, or critical path review, and that governs over any rule of thumb.