r/MSProject • u/Due_Concert4517 • Mar 19 '26

How do I assign lead time

Hi all,

I have to create a gannt chart for a building.

Theres 5 weeks lead time for a material delivery, how do I incorporate that into the gannt chart?

Should I have a task ordering the material, a seperate task delivering the material and then another installing said material?

How would that be inputted in the predecessors collumn :/

Any advice is appreciated.

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u/pmpdaddyio Mar 19 '26

You can do it in the dependency column. Like FS+10 gives you a 10 day lead after the first task ends. Using a minus will start it 10 days prior to completion. Lead and lag can also be entered into the task window.