Although there are different types of construction schedule float and more technical definitions, the definition that makes sense to me is that float is the amount of time a particular activity can be delayed without that activity delaying the project’s completion date (substantial completion date). In looking at a construction schedule, this determination is made from looking at the difference between the early start date for an activity and the late start date for that activity or the difference between the early finish date for that activity and the late finish date for that activity in your CPM schedule (which should be the same amount of time). This is often referred to as “total float” and is the float that I usually focus on since it may pertain to a delay to the substantial completion date of the project and can trigger either the assessment of liquidated damages and/or the contractor’s extended general conditions, whatever the case may be.
Mr. Adelstein may be contacted at Dadelstein@gmail.com