Playground surfacing has an ultimate goal of protecting our children in case they fall. The surface needs to be poured at a depth that is tested to be safe for children at specific falls heights. For our Poured In Place playground surfacing, a fall from 12 ft will need 5 inches of depth. A Fall from 4 ft will only need 1.5 inches of depth to protect the child. Below is a critical fall-height chart on our Poured In Place playground surfacing product.