This is the vertical distance between the moulded base line and the top of the beams of the uppermost continuous deck measured at the side amidships.
Umgama othe nkqo ophakathi komgca oxonxiweyo wesiseko kunye nomphezulu wee-'beams' womgangatho oqhubekekayo ophezulu kanye ulinganiswa ecaleni kumbindi wenqanawe.