Once you complete the steps above, Word will generate a standard chart like the one below along with an Excel table where you can replace the placeholder data with your own. In the All Charts window that pops up, select the Bar category and choose Stacked Bar as the type of graphic to use for your Gantt chart. Go to the Insert tab and select Chart from the Illustration section. To do so, go to the Layout tab on the Word ribbon and click on Orientation.
Open a new Word document and set the orientation of the page from Portrait to Landscape to get more space for your Gantt chart. How to manually make a Gantt chart in Word 1. Build a basic Stacked bar graphic