Construction Project Management
Planning & Scheduling
Bar Charts
Building a CPM Schedule
Networks & Logic
CPM Scheduling
Logic Relationships & Precedence Networks
Progress Updating

Basic Scheduling with Bar Charts

In 1917, Henry Gantt developed what we now call Gantt charts. These types of graphical bar charts were actually one of the very first methods of scheduling work ever conceived.

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All right. Welcome back, everyone. We're gonna be talking about the first method of project scheduling, which is bar charts. Bar charts, also called Gantt charts, it's defined as graphic representation of project activities shown in a time-scaled bar lines with no links shown between activities. And it was developed by an American mechanical engineer called Henry Gantt, in 1917.

So, these days, I've seen people who differentiate between bar charts and Gantt charts. In reality, there is no difference. Bar charts are Gantt charts, and Gantt charts are bar charts. But there are different types, yes, depending on the type of information, the way they're done. So there are differences in types, but not that bar charts is a type and Gantt charts is another type. Here are some examples.

This example, some of you can tell that I did it using Excel. Of course, many contractors, they think they're doing scheduling using Excel. Excel doesn't do any scheduling. They're like just colorful bars. But I just want to demonstrate the bar charts. Here is a simple project that takes 18 days. It's site clearing, two days, and then excavation, another two days, doing the foundation in two days, slab-on-grade, that's one day. Well, it's two days. It shows a little bit off-scale here, and then, framing, roofing, and finish the interior. This is a very small project, all right?

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