Free Float

Free Float is the amount of time that a schedule activity can be delayed without delaying the early start date of any successor or violating a schedule constraint. See also total float, critical path, near-critical activity, and near-critical path.

Definition

According to the PMI Lexicon of Project Management Terms,

Free Float. The amount of time that a schedule activity can be delayed without delaying the early start date of any successor or violating a schedule constraint. See also total float, critical path, near-critical activity, and near-critical path.