End caps work by sealing off the cellular core of the cut board that is exposed and are commonly used when the PVC fascia boards does not terminate at a corner. It is recommended to use a hacksaw to trim the end cap to match the fascia board size and fix it in place with superglue. Freefoamand#039;s replacement fascia end cap is 300mm in length and will accommodate chartwell green fascia boards of any width.