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Should the lag days not be included in the overall project duration? All tasks below the line in black, are subtasks and only the actual durations roll up.
I guess the task with lag days is not on the critical path - so it does not affect the length of the project.
atus
Deborah,
(Well, I had a long answer to the wrong question - so I deleted it)
In the example you showed, the 2d delay may or may not be part of the total duration.
For a particular task, the duration is elapsed effort. (That was the long email)
For summary tasks, it tasks the start and end dates to determine duration.
Summary Task
Task 1 - 3 days
Task 2 - 3 days with a 2 day lag
Total duration is 8 days.
What you have is
Task 1 - 7.5 days
Task 2 to 4 - all occuring within that 7.5 days
so no impact to the final duration
Craig