Placement window

Definition

The hours in which a pour has to be finished once the truck starts discharging.

Why It Matters

Concrete does not wait, so the crew size, the pump, and the finishers all have to be right before the first truck arrives, and a job that runs past its window produces cold joints and callbacks nobody bills for. That makes scheduling the real skill in this business and the reason crews do not scale as fast as revenue: a company winning bigger pours than its finishing crew can close is buying rework. Ask how many pours in the last year needed a second visit and what the weather policy is, since the answers show whether the estimating and the crew are actually matched.