Work Breakdown Structure (WBS) Before developing a Gantt chart, it's important to complete a Work Breakdown Structure (WBS) to illustrate the key components of the project. The complex will consist of a new 150,000 square foot facility with all of the elements mentioned above (e.g. hockey rink, 25m swimming pool, learner pool etc.) plus other components such as project management activities, lounges, and food concession areas. When breaking down your work, think about all these components as well as everything that goes into it (e.g. lighting, flooring, restrooms, seating, scoreboards, etc.