Roll up a Gantt bar to its summary task bar

To quickly see an overview of the scheduled finish dates (finish date: The date that a task is scheduled to be completed. This date is based on the task's start date, duration, calendars, predecessor dates, task dependencies, and constraints.) for selected subtasks (subtask: A task that is part of a summary task. The subtask information is consolidated into the summary task. You can designate subtasks by using the Project outlining feature.), you can mark (or roll up (roll up: On the Gantt Chart, to display symbols on a summary task bar that represent subtask dates. You can roll up dates from subtasks to make important dates easily visible on a summary task bar.)) those dates on the summary task (summary task: A task that is made up of subtasks and summarizes those subtasks. Use outlining to create summary tasks. Project automatically determines summary task information [such as duration and cost] by using information from the subtasks.) bar. On the summary task bar, rolled-up tasks are represented by bars and milestone (milestone: A reference point marking a major event in a project and used to monitor the project's progress. Any task with zero duration is automatically displayed as a milestone; you can also mark any other task of any duration as a milestone.) dates are represented by diamonds.

Subtask symbol on summary task bar

  1. On the View menu, click Gantt Chart.
  2. In the Task Name field, select the subtask you want to roll up.
  3. Click Task Information Button image, and then click the General tab.
  4. Select the Roll up Gantt bar to summary check box.

The subtask bar is displayed over the summary task bar.


  • If a summary task bar shows the finish dates of subtasks and looks cluttered, you can hide the summary task bar and display only the rolled-up subtasks. Select the summary task, click Task Information Button image, click the General tab, and then select the Hide task bar check box.
  • To roll up all subtasks to their summary task bars, select Layout on the Format menu, and then check the Always roll up Gantt bars check box.
Applies to:
Project 2003