This is an interior decoration Gantt chart. A Gantt chart is a bar chart that shows how project tasks are scheduled across time. A Gantt chart is used in project planning to illustrate what work is expected to be done on various days. It allows project managers and team members to see the start, finish, and milestone dates of a project timeline in a single stacked bar chart. Go ahead and download a copy of EdrawMax to create Gantt Chart.